Doctor of Engineering, Akita University, Mar. 2006

Electromagnetic Compatibility

Electro-mechanical device

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Measurement engineering

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Communication and network engineering

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electronic devices and equipment

Apr. 2003 - Mar. 2006
Akita University, Graduate School of Engineering and Resource Science, Department of Electrical, Electronic and Computer Systems Engineering

Apr. 2001 - Mar. 2003
Akita University, Graduate School of Mining and Engineering, Department of Electrical and Electronic Engineering

Apr. 1999 - Mar. 2001
Akita University, Mining College, Akita University, Japan, Department of Electrical and Electronic Engineering

Apr. 1994 - Mar. 1999
Kisarazu National College of Technology, Department of Electrical Engineering

Jun. 2024 - Present
庶務・財務幹事, 電子情報通信学会 エレクトロニクスソサイエティ 編集出版会議, Society

Mar. 2024 - Present
委員長, IEC/SC23J 国内委員会

Jun. 2022 - Present
Assistant Secretary, Technical Committee on Electro-Mechanical Devices (EMD), IEICE, Society

Jun. 2022 - Present
編集委員, 電子情報通信学会 和文誌C編集委員会

Jun. 2022 - Present
委員, 日本設計工学会 セットベース設計手法に関する調査研究分科会, Society

Jun. 2017 - Present
編集委員, 電子情報通信学会 英文誌C編集委員会

Apr. 2017 - Present
委員, エレクトロニクス実装学会 電磁特性技術委員会, Society

May 2013 - Present
専門委員, 電子情報通信学会 エレクトロニクスシミュレーション研究専門委員会, Society

Jun. 2008 - Present
Reviewer, Editorial Committee of the IEICE Transactions, Society

Jun. 2017 - Jun. 2023
Committee Member, Technical Committee on Electromagnetic Compatibility (EMCJ), IEICE, Society

Apr. 2020 - Mar. 2023
委員, 電気学会 磁性材料の高周波特性活用技術調査専門委員会

Jun. 2020 - Jun. 2022
Chair, Technical Committee on Electro-Mechanical Devices (EMD), IEICE, Society

Jun. 2020 - Jun. 2021
Chair, Circuit, devices and interdisciplinary technologies committee group, Electronics Society, IEICE, Society

Jun. 2018 - Jun. 2020
Vice Chair, Technical Committee on Electro-Mechanical Devices (EMD), IEICE, Society

Jun. 2016 - May 2018
Assistant Secretary, Technical Committee on Electro-Mechanical Devices (EMD), IEICE, Society

Jun. 2015 - May 2017
Assistant Secretary, Technical Committee on Electromagnetic Compatibility (EMCJ), IEICE, Society

Jun. 2015 - Jun. 2016
Committee Member, Technical Committee on Electro-Mechanical Devices (EMD), IEICE, Society

Apr. 2006 - Mar. 2016
Secretary, Akita Prefecture 21century Applied Electronics Technical Committee, Society

Mar. 2025
EMCJ, IEICE, 環境電磁⼯学研究専⾨委員会における若⼿研究者発表会優秀賞・若⼿優秀賞の選奨規程


環境電磁⼯学研究専⾨委員会における 「若⼿研究者発表会優秀賞」 「若⼿優秀賞」 の選定は、本規程によって⾏う。
（１） 電⼦情報通信学会定款に基づく電⼦⼯学および情報通信に関する学術または関連事業に関し、優秀な発表を⾏った若⼿研究者の表彰を⾏う。
（２） 本賞は、 「若⼿研究者発表会優秀賞」 「若⼿優秀賞」と称する。
（３） 「若⼿研究者発表会優秀賞」 ・ 「若⼿優秀賞」を選定するため、環境電磁⼯学研究専⾨委員会に若⼿優秀賞選奨委員会を設置する。
（４） 委員⻑を 1 名、幹事 1 名、委員若⼲名とする。

（６） 若⼿優秀賞を受ける者は、環境電磁⼯学研究会（以下、研究会）または、環境電磁⼯学研究専⾨委員会が指定した研究会（電気学会電磁環境研究会） （ただし、ポスター発表等は除外する)において優秀な論⽂を発表した者で、つぎの各号の全てに該当する者から選定する。
イ． 研究会が開催された年の 12 ⽉ 31 ⽇において 35 歳未満であること。
ロ． 研究会において講演者として登録かつ講演を⾏った者であること。
ハ． 当該年度の若⼿研究者発表会において優秀賞を受けていない者であること。

（７） 若⼿研究者発表会優秀賞・若⼿優秀賞の授賞候補者数はいずれも、選考対象⺟数の10％とする(⼩数点以下四捨五⼊)。
Group Delay Optimal Design of Noncommensurate Transmission Line With Degree of Freedom in Gaps Between C-sections
環境電磁工学研究会若手優秀賞, Wakana Kashima;(Co-authors Y. Kayano, T. Yamagiwa, F. Xiao)
Japan society

Sep. 2024
電子情報通信学会通信ソサイエティ
電子情報通信学会通信ソサイエティより活動功労賞, Y. Kayano

Mar. 2023
EMD, IEICE, 機構デバイス研究専門委員会における若手優秀賞の選奨規程
(趣旨)
第一条 機構デバイス研究専門委員会における「若手優秀賞」の選定は，本規程によって行う.
(内容)
第二条 本会定款第 4 条ホ項に基づく電子工学および情報通信に関する学術または関連事業に関し，優秀な発表を行った若手研究者の表彰を行う.
(部門)
第三条 本賞を「若手優秀賞」と称し，高専・学部部門と，大学院部門を設ける.


(受賞者の決定)
第六条
1. 若手優秀賞の各分門の受賞者数はいずれも，選考対象母数10%とする.(小数点以下は切り上げ) 2. 若手優秀賞の選定の資格者は，機構デバイス研究専門委員会構成員とする.
3. 受賞者については，機構デバイス研究専門委員会で報告する.
A Study on EBG Absorber for Imaging Electromagnetic Field Distribution using Multi-probe Type
機構デバイス研究会若手優秀賞(大学院部門), K. Sakemi;(Co-Authors Y. Kayano, Y. Kami, F. Xiao)
Japan society

Sep. 2017
電子情報通信学会通信ソサイエティ
電子情報通信学会通信ソサイエティより活動功労賞, Y. Kayano

Mar. 2015
EST, IEICE
IEICE EST Best Presentation Award for Young Researcher in FY2014

Mar. 2011
IEICE
2011 Young Researchers' Award of IEICE
Japan society

Jun. 2004
IEEE EMC Society Japan and Sendai Chapters
IEEE EMC Society Japan and Sendai Chapters EMC'04/Sendai Student Award
International society

Apr. 2003
JIEP
2002 International Conference on Electronics Packaging Best Paper Award
International society

Design of FSS loaded on waveguide slot antennas using topology optimization and its characterization by measurement
S. Funaki; Y. Kayano; Y. Murakami; Y. Kami; F. Xiao; M. Tanaka; K. Itoh
IEICE Transactions on Electronics (Japanese Edition), IEICE, J108-C, 4, 82-90, 01 Apr. 2025, Peer-reviwed, False
Scientific journal, Japanese

Statistical Analysis of Common-Mode Current on Multi-Conductor Non-Uniform Transmission Lines with Variations in Line Height and Line Gap Using Polynomial Chaos Methods
Y. Hachiga; Y. Kayano; F. Xiao
IEICE Transactions on Electronics (Japanese Edition), IEICE, J108-C, 4, 103-107, 01 Apr. 2025, Peer-reviwed, False
Scientific journal, Japanese

Experimental Study on Common Mode Choke for Conductive Noise Reduction from Differential Line to Ground
H. Ueyama; N. Iida; Y.Kayano; F. Xiao; Y. Kami
Proc. EMC Japan/APEMC Okinawa, IEICE, 453-456, 23 May 2024, Peer-reviwed
International conference proceedings, English

Study on Crosstalk and Mode Conversion of Two Pairs of Differential-Paired Lines with Different Distances
H. Komiya; Y. Kayano; Y. Kami; F. Xiao; H. Ueyama; N. Iida
Proc. EMC Japan/APEMC Okinawa, IEICE, 338-341, 22 May 2024, Peer-reviwed
International conference proceedings, English

Group Delay of Noncommensurate Transmission Line With a Degree of Freedom in Line Gap
W. Kashima; Y. Kayano; T. Yamagiwa
in Proc. EMC Japan/APEMC Okinawa, IEICE, 404, 22 May 2024, Peer-reviwed
International conference proceedings

Study on Design of Bend Differential-Paired Lines With Low Common-Mode Noise Using Topology Optimization
H. Komatsu; Y. Kayano; T. Yamagiwa; Y. Kami; F. Xiao
Proc. EMC Japan/APEMC Okinawa, IEICE, 24-27, 20 May 2024, Peer-reviwed
International conference proceedings, English

Wide Band Experimental Extraction Method for Primary and Secondary Parameters of Shielded-FPC
T. Yamagiwa; Y. Kayano; H. Inoue; Y. Kami; F. Xiao
IEICE Transactions on Communications (Japanese Edition), J107-B, 3, 271-275, 01 Mar. 2024, Peer-reviwed, False
Scientific journal, Japanese

Enhancing Signal Integrity at Bend Discontinuities in High-speed Differential Lines Based on Dispersion Characteristics of CRLH-TL
Jiarui Lu; Yoshiki Kayano
2023 Asia-Pacific Microwave Conference (APMC), IEEE, 80-82, 07 Dec. 2023, Peer-reviwed
International conference proceedings, English

Multi-Objective Design of EMI Filter with Uncertain Parameters by Preference Set-based Design Method and Polynomial Chaos Method
BUI Duc Chinh; Yoshiki KAYANO; Fengchao XIAO; Yoshio KAMI
IEICE Trans. Commun., Institute of Electronics, Information and Communications Engineers (IEICE), E106-B, 10, 959-968, 01 Oct. 2023, Peer-reviwed
Scientific journal, English

Correspondence of Frequency Dispersion of Primary Parameters of Shielded-Printed Circuit Board to Shielding Effectiveness of Near Magnetic Field
T. Yamagiwa; T. Tsuyama; Y. Kayano; Y. Kami; F. Xiao; H. Inoue
Proc. of EMC Europe 2023, 1-5, Sep. 2023, Peer-reviwed
International conference proceedings, English

Quantitative Representation of Frequency Dispersion of Primary Parameters Caused by Thin Conductive Shield and Correspondence to Shielding Effectiveness of Near Magnetic Field
T. Yamagiwa; Y. Kayano; Y. Kami; F. Xiao; H. Inoue
IEICE Transactions on Communications (Japanese Edition), J106-B, 8, 509-518, 01 Aug. 2023, Peer-reviwed
Scientific journal, Japanese

Design of FSS based Radio Wave Absorber using Topology Optimization with NGnet
Yuta SATO, Yoshiki KAYANO, Yoshio KAMI, Fengchao XIAO and Keiichi ITOH
IEICE Trans., IEICE, 106, 5, 187-196, 01 May 2023, Peer-reviwed, False
Scientific journal, Japanese

Quantitative Representation of Frequency Dispersion of Primary Parameters of Shielded-FPC
Taiki Yamagiwa; Yoshiki Kayano; Yoshio Kami; Fegchao Xiao; Hiroshi Inoue
Proc. of 2022 AP EMC2022, 16-18, 02 Sep. 2022, Peer-reviwed
International conference proceedings, English

Experimental Extraction Method for Primary and Secondary Parameters of Shielded-Flexible Printed Circuits
T. Yamagiwa; Y. Kayano; Y. Kami; F. Xiao
IEICE Trans. Commun., IEICE, E105B, 8, 913-922, 01 Aug. 2022, Peer-reviwed, False
Scientific journal, English

Improvement of Maximum Transmission Efficiency and Misalignment Robustness by Using Electron-ring Shaped Coil for Wireless Power Transfer
Khemarakboth CHHOU; Fengchao XIAO; Yoshiki KAYANO; Yoshio KAMI
Proc. of 2020 International Conference on Emerging Technologies for Communications (ICETC), B2-3, 1-4, 02 Dec. 2020, Peer-reviwed
International conference proceedings, English

Novel Multi-Objective Design Approach for Cantilever of Relay Contact using Preference Set-based Design Method
Y. Kayano; K. Miyanaga; H. Inoue
IEICE Trans. Electron., IEICE, E103-C, 12, 713-717, Dec. 2020, Peer-reviwed
Scientific journal, English

Evaluation Method of Voltage and Current Distributions on Asymmetrical and Equi-Length Differential-Paired Lines
Y. Kayano; Y. Kami; F. Xiao
IEICE Trans. Electron., IEICE, E103-C, 11, 597-604, Nov. 2020, Peer-reviwed
Scientific journal, English

EMI Filter with Attenuation Pole for Differential Paired-Lines and Its Design by PSD
Yoshiki Kayano; Yoshio Kami; Fengchao Xiao
Proc. of the 2020 International Symposium on Electromagnetic Compatibility (EMC Europe 2020), #403, 1, Sep. 2020, Peer-reviwed
International conference proceedings, English

Design Method of Very Small Dipole Element on LiNbO3 Substrate for Optical E-Field Sensor
K. Tajima; Y. Akiyama; Y. Kayano; F. Xiao
Proc. of 2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity, 1, Aug. 2020, Peer-reviwed
International conference proceedings, English

Experimental Evaluation of Spatial Resolution for Optical Electric Field Sensor with Dipole Element
K. Tajima; Y. Akiyama; Y. Kayano; F. Xiao
Proc. of 2020 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity, 685-687, Aug. 2020, Peer-reviwed
International conference proceedings, English

A Study on Approximate Expression of Voltage Fluctuation at Power-Ground Structures
Masashi KAWAKAMI; Yoshiki KAYANO; Fengchao XIAO; Yoshio KAMI; Teruo TOBANA; Kohei AKIMOTO; Yoji ISOTA
IEICE Trans., IEICE, J103-C, 5, 266-269, May 2020, Peer-reviwed
Scientific journal, Japanese

Multi-Objective Satisfactory Design of Two Layered Wave Absorber Using Preference Set-Based Design Method
Yoshiki KAYANO; Yoshio KAMI; Fengchao XIAO
IEICE Trans., IEICE, J103-C, 5, 257-260, May 2020, Peer-reviwed
Scientific journal, Japanese

Multi-Objective Design of Transmission Line Referenced to Meshed Ground Planes by Preference Set-based Design
Koki Matsuishi; Yoshiki Kayano; Fengchao Xiao; Yoshio Kami
Proc. of the 2019 International Symposium on Electromagnetic Compatibility (EMC Europe 2019), 486-491, Sep. 2019, Peer-reviwed
International conference proceedings, English

Secondary Parameters for Transmission Line of Periodic Line Width
K. Matsuishi; Y. Kayano; F. Xiao; Y. Kami
Proc. 2019 Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility, Sapporo (EMC Sapporo and APEMC2019), 787, 07 Jun. 2019, Peer-reviwed
International conference proceedings, English

Multi-Objective Design of EMI Filter for Differential Paired-Lines by Preference Set-based Design
Y. Kayano; M. Kawakami; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Proc. 2019 Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility, Sapporo (EMC Sapporo and APEMC2019), 812-815, 07 Jun. 2019, Peer-reviwed
International conference proceedings, English

Influence of SRR Plane Placed above Microstrip Line on Transmission Characteristics
M. Tanaka; R.Sato; S.Muroga; Y. Kayano
Proc. 2019 Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility, Sapporo (EMC Sapporo and APEMC2019), 213, 05 Jun. 2019, Peer-reviwed
International conference proceedings, English

A Study on FDTD Analysis Method of Differential Lines Inclluding Dielectric Loss at GHz Band
T. Yamagiwa; M. Tomioka; R. Kitahara; A. Nakamura; Y. Kayano; T. Kasuga
Proc. 2019 Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility, Sapporo (EMC Sapporo and APEMC2019), 227-230, 05 Jun. 2019, Peer-reviwed
International conference proceedings, English

Approximation of Perfectly Matched Layers to Implement Electromagnetic Shielding
R. Sato; Y. Kayano; M. Tanaka
IEEJ Transactions on Fundamentals and Materials, IEEJ, 139, 5, 277-278, May 2019, Peer-reviwed
Scientific journal, Japanese

Multi-Objective Design of EMI Filter by Preference Set-based Design Method
Y. Kayano; M. Kawakami; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
IEICE Trans., IEICE, J102-C, 5, 166-169, May 2019, Peer-reviwed
Scientific journal, Japanese

Design Methodology of Transmission Line Type Filter by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
IEICE Trans., IEICE, J102-B, 3, 237-247, Mar. 2019, Peer-reviwed
Scientific journal, Japanese

Application of the Preference Set-based Design Method to Cantilever for Electrical Contact
Y. Kayano; K. Miyanaga; H. Inoue; Y. Kami
Proc. 29th International Conference on Electrical Contacts together with 64th IEEE Holm Conference on Electrical Contacts, p1.5, Oct. 2018, Peer-reviwed
International conference proceedings, English

An EMC Education Program for Non-Electric/Electronics Background Engineers
Yoshio Kami; Takashi Nakamura; Yoshitaka Hashimoto; Keishi Fukuzawa; Yoshiki Kayano
Proc. of the 2018 International Symposium on Electromagnetic Compatibility (EMC Europe 2018), 122-127, 28 Aug. 2018, Peer-reviwed
International conference proceedings, English

A Study on Dependency of Transmission Loss of Shielded-Flexible Printed Circuits for Differential Signaling
Y. Kayano; H. Inoue
IEICE Trans. Electron., IEICE, E101-C, 8, 660-663, Aug. 2018, Peer-reviwed
Scientific journal, English

A Study on Design of Differential-Paired Lines with Meander Delay Line by Preference Set-based Design Method
Yoshiki Kayano; Yoshio Kami; Haruo Ishikawa; Fengchao Xiao; Hiroshi Inoue
Proc. 2018 IEEE International Symposium on Electromagnetic Compatibility & 2018 IEEE Asia-Pacific Symposium on Electromagnetic Compatibility, 536-541, 16 May 2018, Peer-reviwed
International conference proceedings, English

Application of the Preference Set-based Design Method to Bent Differential-Paired Lines
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
IEICE Trans., IEICE, J101-C, 5, 233-244, May 2018, Peer-reviwed
Scientific journal, Japanese

Design of Transmission Line with Impedance Resonator for Negative Group Delay and Slope Characteristics by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Proc. General Information 2018 International Conference on Electronics Packaging and iMAPS All Asia Conference, 170-175, 19 Apr. 2018, Peer-reviwed
International conference proceedings, English

Identifying Frequency Dispersion of Transmission Characteristics of Shielded-Flexible Printed Circuits
Yoshiki Kayano; Hiroshi Inoue
Proc. of the 2017 International Symposium on Electromagnetic Compatibility, 1-6, Sep. 2017, Peer-reviwed
International conference proceedings, English

Investigation on Characteristic Impedance of Transmission Line in Meshed-ground Flexible Printed Circuit
Yantao Zhu; Fengchao Xiao; Xiangyang Sun; Yoshiki Kayano; Yoshio Kami
Proc. The 2017 Asia-Pacific International EMC Symposium, 151-153, Jun. 2017, Peer-reviwed
International conference proceedings, English

Dependency of Transmission Loss of Shielded-FPC on Thickness of Conductive Shield
Yoshiki Kayano; Hiroshi Inoue
Proc. The 2017 Asia-Pacific International EMC Symposium, 194, Jun. 2017, Peer-reviwed
International conference proceedings, English

Evaluation of Transmission Characteristics of Shielded-Flexible Printed Circuits for Differential-Signaling by Equivalent Circuit Model
Y. Kayano; H. Inoue
IEICE Trans., IEICE, J100-C, 5, 232-235, May 2017, Peer-reviwed
Scientific journal, Japanese

An Experimental Study on Arc Phenomena at Very Slowly Breaking Contact without/with External DC Magnetic Field
H. Inoue; Y. Kayano
Proc. 6th International Conference on Reliability of Electrical Products and Electrical Contacts, 1, Apr. 2017
International conference proceedings, English

A Study on Impact of Conductive-Shield Material on Differential-Paired Lines on PCB
Y. Kayano; H. Inoue
IEICE Trans., IEICE, J100-B, 3, 195-198, Mar. 2017, Peer-reviwed
Scientific journal, Japanese

A Study on Frequency Dispersion of Transmission Characteristics of Shielded-Flexible Printed Circuits
Yoshiki Kayano; Hiroshi Inoue
2017 INTERNATIONAL CONFERENCE ON ELECTRONICS PACKAGING (ICEP), IEEE, 272-277, 2017, Peer-reviwed, In this paper, a frequency dispersion of transmission characteristics of shielded-flexible printed circuits (FPC) for differential-signaling is studied experimentally and numerical modeling. Firstly, differential-mode impedance, the mixed-mode scattering parameters and eye-diagram are discussed. Secondly, frequency dispersion of transmission characteristics is discussed by using RLGC equivalent-circuit model. The insufficient shielding performance for near magnetic field increases both the inductance and resistance. As the frequency becomes lower, DM impedance increases and propagation velocity decreases. Consequently, the frequency response has relatively large frequency dispersion.
International conference proceedings, English

Embedded F-SIR Type Transmission Line with Open-Stub for Negative Group Delay Characteristic
Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E99C, 9, 1023-1026, Sep. 2016, Peer-reviwed, Negative group delay characteristics can be used to improve signal-integrity performance such as equalizer for compensation of the group delay of transmission line (TL). This brief-paper newly attempts to propose a concept of the embedded Folded-Stepped Impedance Resonator (F-SIR) structure with open-stub resonator, for negative group delay and slope characteristics at high-frequency as well as low-insertion loss. The concept of the proposed TL is based on the combination of resonance and anti-resonance due to open-stub resonator in order to establish wideband negative group delay and negative slope characteristics. The proposed TL is fabricated on PCB, and then the concept is validated by measurement and simulation.
Scientific journal, English

Transmission Characteristics and Shielding Effectiveness of Shielded-Flexible Printed Circuits for Differential-Signaling
Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E99C, 7, 766-773, Jul. 2016, Peer-reviwed, To provide basic considerations for the realization of method for suppressing the EMI from differential-paired lines on flexible printed circuits (FPC), the characteristics of the SI performance and shielding effectiveness (SE) of shielded-flexible printed circuits for differential signaling are investigated in this paper experimentally and by a numerical modeling. Firstly, transmission characteristics of TDR measurement and frequency response of broken vertical bar S (dd21)broken vertical bar are discussed, from view point of signal integrity. Secondly, as the characteristics of the SE performance for EMI, frequency responses of magnetic field are investigated. Although placement of conductive shield near the paired-lines decreases characteristics impedance, for the broken vertical bar S (dd21)broken vertical bar "with Cu 5.5 mu m-thickness copper shield" is not deteriorated compared with "without shield" and sufficient SE performance for magnetic field can be established. But, thin-shield deteriorates SI as well as SE performances. The frequency response of broken vertical bar S (dd21)broken vertical bar at higher frequencies for the "Ag 0.1 mu m" case has the steep loss roll off. A reflection loss resulted from impedance-mismatching is not dominant factor of the losses. The dominant factor may be magnetic field leakage due to very thin -conductive shield.
Scientific journal, English

Negative Group Delay Characteristics of Embedded Transmission Line with half-wavelength type F-SIR Structure
Yoshiki Kayano; Hiroshi Inoue
2016 International Conference on Electronics Packaging (ICEP), IEEE, 19-22, 2016, Peer-reviwed, Negative group delay is one of the anomalous characteristics of the metamaterial, and can be used to compensate the group delay of systems and is applicable to signal processing devices. In this paper, to achieve negative group delay with not only wide-band characteristics but also low-insertion loss, we newly propose the embedded transmission line with half-wavelength type folded-stepped impedance resonator (F-SIR) structure which has the symmetrical electric-wall at the guide center driven by differential-mode. The characteristics are discussed with numerical simulation. The concept of the proposed TL is based on the combination of resonance and anti-resonance due to open-stub resonator and F-SIR. The negative group delay and slope characteristics are achieved around anti-resonance. The insertion loss is dramatically improved compared with our previous results, which is constructed by gap and F-SIR structure. This study is a successful report that the validity of the proposed embedded TL structure is demonstrated.
International conference proceedings, English

Experimental Study on Voltage Fluctuation at Arc Blowing with External DC Magnetic Field
Yoshiki Kayano; Hiroshi Inoue
28TH INTERNATIONAL CONFERENCE ON ELECTRIC CONTACTS (ICEC2016), HERIOT-WATT UNIV, 351-354, 2016, Peer-reviwed, Parameters on electromagnetic compatibility (EMC), as well as lifetime and reliability, are important properties for electrical contacts. This paper newly attempts to clarify the mechanism of the generation of high frequency EM noise caused by breaking contact according the arc discharge, and the effect of the external DC magnetic field on the EM noise as well as arcing phenomena under high-speed separation, which allows to study possible means for developing the long lifetime and low noise electrical contact. Firstly, preliminary experiments under the conditions: open-voltage 30V and closed-current 3.6A, and DC magnetic field 0mT to 52mT, which correspond to our previous studies, were carried out. Breaking waveforms, frequency spectrum and time-frequency domain characteristic of voltage fluctuation are studied by comparison with and without external magnetic field. It was demonstrated that although applying external magnetic field is effective in reduction of duration of gaseous phase in arc (9%), higher variation of contact voltage in the gaseous phase above several hundred Megahertz is caused by external magnetic field. More importantly, the applied DC magnetic field under high-speed separation does not work to suppress the arc-duration well. These results are basic and useful finding and consideration to clarify not only the contact-breaking phenomena but also the design methodology of electrical contact from view point of EMC.
International conference proceedings, English

Suppression of Mode-Conversion by DNG Material for Differential-Paired Lines with Bend Discontinuities
Y. Kayano; H. Inoue
Trans. JIEP, JIEP, 8, 1, 111-117, Dec. 2015, Peer-reviwed, This paper newly attempts to propose a method for compensating the mode-conversion by double negative (DNG) material for suppression of imbalance (common-mode) component and EMI generated by differential-paired lines with bend discontinuities, without the deterioration of the SI performance. The concept is based on compensation of phase-difference due to the bend discontinuities, by using DNG material with phase-constant β = 0 at a certain frequency. When the DNG material is located on discontinuity region asymmetrically, it was evaluated that CM component and the simulated |Scd21|, which is defined as the conversion from differential-mode (DM) to CM, can be compensated. The significant suppression effectiveness of |Scd21| in the case study is achieved by 13 dB around target frequency (100 MHz) using DNG material. Although DNG characteristics has not been established by real transmission line structure, the results validate the proof of concept and that proposed method should be one of the potential candidates of a basic method for suppressing mode-conversion due to phase-difference.
Scientific journal, English

A study on transmission characteristics and shielding effectiveness of shielded-flexible printed circuits for differential-signaling
Yoshiki Kayano; Hiroshi Inoue
IEEE International Symposium on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers Inc., 2015-, 80-85, 10 Sep. 2015, Peer-reviwed, To provide basic considerations for the realization of method for suppressing the EMI from differential-paired lines on flexible printed circuits (FPC), the characteristics of the SI performance and shielding effectiveness (SE) of shielded-flexible printed circuits for differential-signaling are investigated in this paper experimentally and by a numerical modeling. Firstly, transmission characteristics of TDR measurement and frequency response of Sdd21 are discussed, from view point of signal integrity. Secondly, as the characteristics of the SE performance for EMI, frequency responses of magnetic field are investigated. Although placement of conductive shield near the paired-lines decreases characteristics impedance, Sdd21 for the 'with Cu 5.5um-thickness copper shield' is not deteriorated compared with 'without shield' and sufficient SE performance for magnetic fields can be established. But, thin-shield deteriorates SI as well as SE performances.
International conference proceedings, English

Dominant factors of electromagnetic interference problems of asymmetrical and equi-distance differential-paired lines
Yoshiki Kayano; Hiroshi Inoue
RADIO SCIENCE, AMER GEOPHYSICAL UNION, 50, 2, 111-121, Feb. 2015, Peer-reviwed, Multichannel differential signaling scheme is one of the key technologies for modern electronics systems. For actual system, the ideal balance or symmetrical topology cannot be established, and hence, an imbalance component is excited. To provide the basic considerations for electromagnetic (EM) radiation from practical asymmetrical differential-paired lines structure with equi-distance routing, in which the same-length paired lines are used in high-speed board/LSI layout design, in this paper we newly attempt to clarify the characteristics and to identify dominant imbalance and EM radiation factor from asymmetrical differential-paired lines, by a physics-based model. The frequency response of EM radiation from asymmetrical differential-paired lines can be identified using the physics-based model. The physics-based model is constructed with an equivalent circuit model to calculate current distribution, and radiation model based on Hertzian dipole antenna. It is validated by comparing the predicted results with finite difference time domain simulation. This paper reported the basic characteristics of imbalance component of differential-paired lines with asymmetrical equi-distance routing and demonstrates the dominant factor of imbalance component and EM radiation successfully.
Scientific journal, English

Suppression of Mode-Conversion by DNG Material placed on Differential-Paired Lines with Bend Discontinuities
Yoshiki Kayano; Hiroshi Inoue
2015 INTERNATIONAL CONFERENCE ON ELECTRONIC PACKAGING AND IMAPS ALL ASIA CONFERENCE (ICEP-IAAC), IEEE, 700-703, 2015, Peer-reviwed, This paper newly attempts to propose a method for compensating the mode-conversion by double negative (DNG) material, for establishment of SI performance and suppression of imbalance (common-mode: CM) component and EMI generated by differential-paired lines with bend discontinuities. To demonstrate the impact of the DNG material on CM component, the simulated vertical bar S-cd21 vertical bar, which is defined as the conversion from differential-mode (DM) to CM, are evaluated. The significant suppression effectiveness of vertical bar S-cd21 vertical bar in the case study is achieved around 100MHz by DNG material. The suppression effectiveness at 70MHz is 10dB. It is estimated that the proposed structure is suitable for improving the SI performance and suppressing the CM in the case study. The results validate the proof of concept. The proposed method is good candidate for suppressing mode-conversion due to phase-difference.
International conference proceedings, English

Characteristics of Mode-Conversion of Bent Differential-Paired Lines with Different EM Coupling
Yoshiki Kayano; Hiroshi Inoue
2015 ASIA-PACIFIC INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (APEMC), IEEE, 700-703, 2015, Peer-reviwed, In order to provide basic considerations for the realization of methods for suppressing the mode-conversion and EM radiation from differential-paired lines with length mismatch, the mode-conversion in bend differential-paired lines with different EM coupling was studied with FDTD modelling. It is demonstrated that the differential-paired line with thinner dielectric substrate which can maintain narrow width of trace, is suitable for improving the SI performance and suppressing the EMI.
International conference proceedings, English

A Study on Transmission Characteristics and Shielding Effectiveness of Shielded-Flexible Printed Circuits for Differential-Signaling
Yoshiki Kayano; Hiroshi Inoue
2015 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), IEEE, 80-85, 2015, Peer-reviwed, To provide basic considerations for the realization of method for suppressing the EMI from differential-paired lines on flexible printed circuits (FPC), the characteristics of the SI performance and shielding effectiveness (SE) of shielded-flexible printed circuits for differential-signaling are investigated in this paper experimentally and by a numerical modeling. Firstly, transmission characteristics of TDR measurement and frequency response of vertical bar S-dd21 vertical bar are discussed, from view point of signal integrity. Secondly, as the characteristics of the SE performance for EMI, frequency responses of magnetic field are investigated. Although placement of conductive shield near the paired-lines decreases characteristics impedance, vertical bar S-dd21 vertical bar for the "with Cu 5.5um-thickness copper shield" is not deteriorated compared with "without shield" and sufficient SE performance for magnetic fields can be established. But, thin-shield deteriorates SI as well as SE performances.
International conference proceedings, English

Locally Shielded Differential-Paired Lines with Bend Discontinuities for SI and EMI Performances
Y. Kayano; M. Ohkoshi; T. Watabe; H. Inoue
Trans. JIEP, JIEP, 7, 1, 32-38, Dec. 2014, Peer-reviwed
Scientific journal, English

Experimental Study on Arc Motion and Voltage Fluctuation at Slowly Separating Contact with External DC Magnetic Field
Yoshiki Kayano; Kazuaki Miyanaga; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E97C, 9, 858-862, Sep. 2014, Peer-reviwed, Since electromagnetic (EM) noise resulting from an arc discharge disturbs other electric devices, parameters on electromagnetic compatibility, as well as lifetime and reliability, are important properties for electrical contacts. To clarify the characteristics and the mechanism of the generation of the EM noise, the arc column and voltage fluctuations generated by slowly breaking contacts with external direct current (DC) magnetic field, up to 20 mT, was investigated experimentally using Ag90.7wt%SnO2 9.3wt% material. Firstly the motion of the arc column is measured by high-speed camera. Secondary, the distribution of the motion of the arc and contact voltage are discussed. It was revealed that the contact voltage fluctuation in the arc duration is related to the arc column motion.
Scientific journal, English

Arc Blowing for Different Shape Silver-Tin Dioxide Contacts using External DC Magnetic Field
Y. Kayano; H. Inoue
Proc. International Conference on Electrical Contacts, 635-640, Jun. 2014, Peer-reviwed
International conference proceedings, English

Locally Shielded Differential-Paired Lines with Bend Discontinuities for SI and EMI Performances
Yoshiki Kayano; Masashi Ohkoshi; Takuya Watabe; Hiroshi Inoue
2014 INTERNATIONAL CONFERENCE ON ELECTRONICS PACKAGING (ICEP), IEEE, 484-489, 2014, Peer-reviwed, To provide the basic considerations for EM radiation from practical asymmetrical differential-paired lines with bend routing, this paper newly attempts to propose locally shielded differential-paired lines for establishing SI performance and suppressing imbalance component and EMI generated by differential-paired lines with bend (turnoff point) discontinuities. The conductive plane is placed on discontinuity region asymmetrically. The concept of locally shielded layout is based on compensation of phase-difference due to the bend discontinuities, by using electric-coupling between signal trace and a conductive plane for the shield. The proposed method is suitable for implementing on PCB, without changing layout of the differential-paired lines. To compare the effect of the locally shielded paired-lines on CM component, the vertical bar S-cd21 vertical bar, which is defined as the conversion from DM to CM, are evaluated. The significant suppression effectiveness of broken vertical bar S-cd21 vertical bar in the case study is achieved below 1 GHz by locally shielded differential-paired lines. Consequently, the validity of the proposed locally shielded layout is demonstrated in the case study. It is demonstrated that the proposed locally shielded layout is suitable for improving the SI performance and suppressing the CM in the case study. This study has successfully reported the basic method for suppressing imbalance component of differential-paired lines with bend discontinuities.
International conference proceedings, English

Weak-Coupled Cross-Sectional Differential-Paired Lines with Bend Discontinuities for SI and EMI Performances
Yoshiki Kayano; Masashi Ohkoshi; Hiroshi Inoue
2014 INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, TOKYO (EMC'14/TOKYO), IEEE, 133-136, 2014, Peer-reviwed, For differential-signaling system, the ideal balance or symmetrical topology cannot be established due to bend (turnoff point) discontinuities, and hence, an imbalance component is excited. Therefore methodology and geometrical-structure for satisfying both SI and EMI performances are indispensable. In order to provide basic considerations for the realization of methods for predicting and suppressing the EM radiation from asymmetrical differential-paired lines, the imbalance component and EMI from strong and weak coupled differential-paired lines with bend discontinuities were studied experimentally and with modeling. Firstly differential-mode impedance and the mixed-mode scattering parameters are discussed, from view point of SI performance. Secondly, frequency response of electric field near a PCB are discussed, from view point of EMI. It is demonstrated that the differential-paired line with weak-coupling is suitable for improving the SI performance and suppressing the EMI. This study has successfully reported the basic characteristics of imbalance component of differential-paired lines with bend routing and demonstrates the dominant factor of imbalance component.
International conference proceedings, English

Identifying Dominant Factor of Imbalance Component and EM Radiation from Differential-Paired Lines with Serpentine Equi-Length Routing
Yoshiki Kayano; Hiroshi Inoue
2014 INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, TOKYO (EMC'14/TOKYO), IEEE, 113-116, 2014, Peer-reviwed, For actual differential-signaling system, the ideal balance or symmetrical topology cannot be established, and hence, an imbalance component is excited. To provide the basic considerations for establishment of predicting the EM radiation from practical differential-paired lines, this paper attempts to identify the dominant factor of imbalance component and EM radiation from asymmetrical differential-paired line with equi-length routing.
International conference proceedings, English

A Method for Compensating Imbalance Component of Asymmetrical Differential-Paired Lines Due to Turnoff Point for SI and EMI Performances
Yoshiki Kayano; Masashi Ohkoshi; Hiroshi Inoue
2014 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), IEEE, 519-524, 2014, Peer-reviwed, For differential-signaling system, the ideal balance or symmetrical topology cannot be established due to discontinuities at turnoff point (90-degree turn), so called bending, and hence, an imbalance component is excited. Therefore methodology and geometrical-structure for satisfying both SI and EMI performances are indispensable. In order to provide basic considerations for the realization of methods for compensating the imbalance component and suppressing the EM radiation from asymmetrical differential-paired lines, the imbalance component and EMI from the differential-paired lines with discontinuities at turnoff point were studied experimentally and with numerical modeling. The differential-paired lines with different layouts were prepared for the discussion as typical routing. In the method, the distance between the paired lines at turnoff point is narrow, and hence the difference of length between Line 1 and 2 is compensated. Therefore the suppression of imbalance component by compensating the difference of the length and suppression of EMI by narrower separation can be achieved. Firstly the mixed mode scattering parameters are discussed, from view point of SI performance. Secondly, frequency responses of electric-field and magnetic-field near a PCB are discussed, from view point of EMI. It is demonstrated that the proposed method is suitable for improving the SI performance and suppressing the EMI. This study has successfully reported the basic characteristics of imbalance component of differential-paired lines with turnoff point.
International conference proceedings, English

Characteristics on Negative Group Delay of Embedded Multi-Stage F-SIR Type Transmission Line Structure with Open Stub Resonator
Yoshiki Kayano; Xiaofan Yang; Hiroshi Inoue
2014 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), IEEE, 76-78, 2014, Peer-reviwed, Negative group delay characteristics can be used to improve signal-integrity performance such as equalizer for compensation of the group delay of transmission line (TL). This paper newly proposed the embedded multi-stage Folded-Stepped Impedance Resonator (F-SIR) structure with open-stub resonator, in order to establish negative group delay and slope characteristics. The concept of the proposed TL is based on the combination of resonance and anti-resonance due to open-stub resonator in order to establish wideband negative group delay and negative slope characteristics. The basic concept is validated by numerical simulation.
International conference proceedings, English

Experimental Analysis of Arc Waveform Affected by Holder Temperature Change at Slowly Separation of Silver-Tin Dioxide Contacts
Yoshiki Kayano; Kazuaki Miyanaga; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E96C, 9, 1110-1118, Sep. 2013, Peer-reviwed, Arc discharge at breaking electrical contact is considered as a main source of not only degradation of the electrical property but also an undesired electromagnetic (EM) noise. In order to clarify the effect of holder temperature on the bridge and arc-duration, opening-waveforms at slowly separating silver-tin dioxide contact with different holder temperature are measured and discussed experimentally in this paper. Firstly, as opening-waveforms, the contact voltage, the contact current and the movement of moving contact related to the gap length are measured simultaneously. Secondly, the relationship between temperature of the holder and duration of the arc was quantified experimentally. It was revealed that as the initial temperature of the holder becomes higher, arc-duration becomes slightly longer. More importantly, the holder temperature dependencies of percentage of each-phase (metallic and gaseous-phases) are different with different closed-current.
Scientific journal, English

Identifying Dominant Factor of EM Radiation from Asymmetrical Differential-Paired Lines with Equi-Distance Routing
Y. Kayano; H. Inoue
Proc.2013 International Symposium on Electromagnetic Theory, 218-221, May 2013, Peer-reviwed, Invited
International conference proceedings, English

An Approach for the Electromagnetic Compatibility aound the Printed Circuit Board
H. Inoue; Y. Kayano
IEICE Trans., IEICE, J96-B, 4, 378-388, Apr. 2013, Peer-reviwed, 電磁環境の中で機器内の最も基本的なEMC問題の発生する部分であるプリント回路基板(PCB)及びその周辺の電磁放射問題について論じている.本論文では,最初に,信号と放射の関係及びEMC問題の原因を解明する手助けになる問題点を整理している.次いで,PCBの有限なグランド面(GND)に流れる電流に関係する不平衡電流(コモンモード電流)を検討し,放射に大きな影響を与える要素を明確にしている.また,PCBを配線で結合する場合と線路の不連続によって発生する放射の問題の基礎データを示している.本研究では放射メカニズムを明確にするための最も単純で基本的な構造,すなわち,一般的に使用される表面マイクロストリップ線路をもつPCBとケーブルによって構成されるEMC問題モデル(EMIアンテナモデル)を用いた.更に,PCBに関係する配線の不連続部分や基板上の素子,近傍に置かれた導体,PCBを内蔵するきょう体などからの放射についても論じている.複雑な放射メカニズム及び有効な放射抑制法を検討するには適切な検討モデルが必要不可欠である.単純モデルから得た基本原理は,様々なモデルへの応用が可能になり,電磁ノイズの対策が飛躍的に進展すると考えられる.
Scientific journal, Japanese

A Study on EM Radiation from Shielded-Flexible Flat Cable for Interconnection
Y. Kayano; R. Uesugi; H. Inoue
Proc. International Conference on Electronics Packaging, 701-706, Apr. 2013, Peer-reviwed
International conference proceedings, English

Imbalance component and em radiation from differential-paired lines with serpentine equi-distance routing
Yoshiki Kayano; Hiroshi Inoue
IEEE International Symposium on Electromagnetic Compatibility, 359-364, 2013, Peer-reviwed, To provide the basic considerations for establishment of predicting the EM radiation from practical differential-paired lines, this paper attempts to quantify the correlation between imbalance components and EM radiation from asymmetrical differential-paired line with different serpentine equi-distance routing. The differential-paired lines with different layouts were prepared for the discussion as typical different and equi-distance routing. a) is a typical asymmetrical topology due to differences in bend and length, b) is symmetrical topology with equi-distance routing, and c) is asymmetrical topology with different bend routing region. Although the geometric length of each line is the same in the symmetrical equi-distance topology, the imbalance component cannot be suppressed completely. The dominant factor of generation of imbalance component of the model under study is difference of the far-end cross-talk due to the asymmetrical geometry. The compensation region with U-shape is not effective in suppressing the imbalance component. Although serpentine equi-distance routing is suitable for improvement of SI issues compared with typical layout, it is not effective in suppressing the EMI. The reason is due to the differential-paired lines routed close to the edge of the PCB. This is significant problem of design of a meander delay line for high-speed clock distribution to establish both SI and EMI performance. This study has successfully reported the basic characteristics of imbalance component of differential-paired lines with equi-distance routing and demonstrates the dominant factor of imbalance component. © 2013 IEEE.
International conference proceedings, English

Imbalance Component and EM Radiation from Differential-Paired Lines with Serpentine Equi-Distance Routing
Yoshiki Kayano; Hiroshi Inoue
2013 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), IEEE, 359-364, 2013, Peer-reviwed, To provide the basic considerations for establishment of predicting the EM radiation from practical differential-paired lines, this paper attempts to quantify the correlation between imbalance components and EM radiation from asymmetrical differential-paired line with different serpentine equidistance routing. The differential-paired lines with different layouts were prepared for the discussion as typical different and equi-distance routing. a) is a typical asymmetrical topology due to differences in bend and length, b) is symmetrical topology with equi-distance routing, and c) is asymmetrical topology with different bend routing region. Although the geometric length of each line is the same in the symmetrical equi-distance topology, the imbalance component cannot be suppressed completely. The dominant factor of generation of imbalance component of the model under study is difference of the far-end cross-talk due to the asymmetrical geometry. The compensation region with U-shape is not effective in suppressing the imbalance component. Although serpentine equi-distance routing is suitable for improvement of SI issues compared with typical layout, it is not effective in suppressing the EMI. The reason is due to the differential-paired lines routed close to the edge of the PCB. This is significant problem of design of a meander delay line for high-speed clock distribution to establish both SI and EMI performance. This study has successfully reported the basic characteristics of imbalance component of differential-paired lines with equi-distance routing and demonstrates the dominant factor of imbalance component.
International conference proceedings, English

Identifying Imbalance Component and EM radiation from Asymmetrical Differential-Paired Lines with Different U-Shape Bend Equi-Distance Routing
Y. Kayano; H. Inoue
Proc. Pan-Pacific EMC Joint Meeting’12, 195-198, Nov. 2012
International conference proceedings, English

A Method for Suppressing Duration and Electromagnetic Noise of Contact Breaking Arc by Applying Pressure
Kazuaki Miyanaga; Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E95C, 9, 1487-1494, Sep. 2012, Peer-reviwed, The circuit switching device by the electrical contact needs the high reliability and long lifetime. The very important factor for the high reliability, long lifetime and electromagnetic noise of the electrical contact is to suppress the duration and electromagnetic noise of arc discharge. Usually, the suppression of arc duration method is applying the external magnetic field. But, this method was not able to suppress the metallic arc duration and increased the voltage fluctuation at arc duration. Therefore, the new method for suppressing the duration and noise for electrical contact is expected. In this paper, a new method for suppressing duration and EM noise of arc discharge by applying housing pressure is proposed. To investigate the availability of proposed method, the measurement and some considerations on arc duration, voltage-fluctuation and current noise up to GHz frequency band generated by breaking contact in the applied pressure relay housing are reported. Firstly, voltage waveform and duration of the arc are measured. The effects of the pressure in the relay housing on the duration of the metallic and gaseous phase arcs are discussed. Secondary, voltage fluctuation, the spectrogram of contact voltage and current noise up to GHz frequency band are discussed. In the results, the proposed method with applying pressure makes shorter both durations of metallic and gaseous phases. The shorter duration of metallic phase is an advantage of the proposed method beyond the applying external magnetic field. As the housing pressure is increase, the voltage fluctuation and current noise becomes smalls. The proposed method can suppress the voltage fluctuation as well as arc duration. Consequently, the proposed method is on of the good solution to suppress the duration and electromagnetic noise of the arc discharge from electrical contact and result of this study indicates the basic considerations necessary to ensure good lifetime and EMC designs for electrical contacts.
Scientific journal, English

Voltage Waveform at Slowly Separating Silver-Based Contacts with Heated Holder
Yoshiki Kayano; Kazuaki Miyanaga; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E95C, 9, 1495-1501, Sep. 2012, Peer-reviwed, Arc discharge generated by breaking electrical contact is considered as a main source of not only degradation of the electrical property but also an undesired electromagnetic (EM) noise. In order to clarify the effect of heated temperature on the bridge, arc-duration and the fluctuation of voltage, opening-waveforms at slowly separating silver-tin dioxide contact with holder heating are measured and discussed experimentally in this paper. Firstly. opening-waveforms are measured. Secondly, voltage fluctuation of the each arc-phase is discussed to extract the effect of the heated holder. The relationship between temperature of the heated holder and duration and fluctuation of the arc was investigated experimentally. It was revealed that as the initial temperature of the heated holder becomes higher, arc-duration becomes slightly longer. In addition, voltage fluctuation at the gaseous-phase decreases when the holder is heated. Consequently, the heated holder can suppress the voltage fluctuation even if its duration becomes slightly longer.
Scientific journal, English

Evaluation of Information Leakage from Cryptographic Hardware via Common-Mode Current
Yu-ichi Hayashi; Naofumi Homma; Takaaki Mizuki; Takeshi Sugawara; Yoshiki Kayano; Takafumi Aoki; Shigeki Minegishi; Akashi Satoh; Hideaki Sone; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E95C, 6, 1089-1097, Jun. 2012, Peer-reviwed, This paper presents a possibility of Electromagnetic (EM) analysis against cryptographic modules outside their security boundaries. The mechanism behind the information leakage is explained from the view point of Electromagnetic Compatibility: electric fluctuation released from cryptographic modules can conduct to peripheral circuits based on ground bounce, resulting in radiation. We demonstrate the consequence of the mechanism through experiments where the ISO/IEC standard block cipher AES (Advanced Encryption Standard) is implemented on an FPGA board and EM radiations from power and communication cables are measured. Correlation Electromagnetic Analysis (CEMA) is conducted in order to evaluate the information leakage. The experimental results show that secret keys are revealed even though there are various disturbing factors such as voltage regulators and AC/DC converters between the target module and the measurement points. We also discuss information-suppression techniques as electrical-level countermeasures against such CEMAs.
Scientific journal, English

Effect of Periodic Dielectric Material placed over PCB on EM Noise Shielding
Y. Kayano; H. Inoue
Proc. Joint Conference of “International Conference on Electronics Packaging” and “IMAPS All Asia Conference”, 162-167, Apr. 2012, Peer-reviwed
International conference proceedings, English

Negative Group Delay and Slope Characteristics of F-SIR Structure by Short-Via in an Output Line
楊 暁帆; 萓野 良樹; 井上 浩
Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan, Organizing Committee of Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan, 2012, 10-10, 2012
English

Identifying em radiation from asymmetrical differential-paired lines with equi-distance routing
Yoshiki Kayano; Yasunori Tsuda; Hiroshi Inoue
IEEE International Symposium on Electromagnetic Compatibility, 311-316, 2012, Peer-reviwed, Differential-signaling (DS) techniques such as low-voltage differential-signaling (LVDS) are widely used in digital electronic devices in order to establish a high-speed digital propagation with low-electromagnetic interference (EMI). For actual DS, the ideal balance or symmetrical topology cannot be established, and hence, an imbalance component is excited in practical high-density packaging systems. In this paper, we newly attempt to identify and quantify the frequency responses of the imbalance component and electromagnetic (EM) radiation when the structure and topology change from a symmetrical to an asymmetrical differential-paired lines with equi-distance routing, using a physics-based model, which is constructed with an equivalent circuit model to calculate current distribution, and radiation model based on Hertzian dipole antenna. The physics-based model is validated by comparing the predicted results with FDTD simulation. The frequency response of EM radiation from asymmetrical differential-paired lines can be identified using our proposed model. This study has successfully established a basic method to effectively predict EM radiation from practical differential-paired lines. © 2012 IEEE.
International conference proceedings, English

Arc characteristics on dissymmetric contact pair of Ag based materials at slowly breaking
Kazuaki Miyanaga; Yoshiki Kayano; Hiroshi Inoue; Tasuku Takagi
IET Conference Publications, 2012, 605, 250-254, 2012, Peer-reviwed, In this study, we newly attempt to clarify the material dependencies of arc characteristics at slowly breaking contact changing by the Ag based different material pairs. Firstly, the contact voltage, current waveforms and arc columns are measured. Secondary, the material dependencies of the arc duration, the spread and concentration of the arc column are discussed. Finally, the arc voltage fluctuation is discussed. Experimental results show that in the cases of the (+)Ag-Ag(-) and (+)AgSnO2- (-)Ag, arc durations can be shorter. The arc duration influenced by the cathode electrode material. The voltage fluctuation larger than the supply voltage is observed in the (+)Ag-(-)Ag case. The (+)AgSnO2-(-)Ag contact pair has relatively small voltage fluctuation. The condition of dissymmetric contact pair in the case of the (+)AgSnO2-(-)Ag is one of the solution to make shorter duration and smaller voltage fluctuation of arc discharge. This study provides the basic considerations on the short arc extinction for DC switching.
International conference proceedings, English

A Study on Design of PLL for Low Phase-Noise Characteristics
Hideyasu Hobara; Yoshiki Kayano; Hiroshi Inoue
2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE), SOC INSTRUMENT CONTROL ENGINEERS JAPAN, 1416-1421, 2012, Peer-reviwed, An UWB RF system can be used in the area of signal processing. Phase Locked Loop (PLL) is one of the important key technologies for broadband communication and signal processing. The phase-noise of output voltage of the oscillator with PLL should be suppressed for the performance. The low phase-noise characteristics as well as the broadband and high-frequency use are very important factor for the UWB application. This study reveals basic considerations for low phase-noise PLL. In order to develop a low phase-noise PLL, we newly attempt to establish a method for designing the phase comparator with high sensitivity. A phase comparator is consisted of XOR with CMOS transistor. The W (Channel Width)/L (Channel Length) ratio related to the delay of CMOS transistor in the phase comparator was designed to improve the sensitivity. As ratio of size of each stage decreases, detection sensitivity increases. Especially, the improvement effect of the W/L ratios of the MOS transistor in 2nd and 3rd stage on detection sensitivity is significant. The proposed phase comparator is built into PLL. It is demonstrated by circuit simulation that the proposed phase comparator has a possibility for improving phase-noise of the PLL.
International conference proceedings, English

Evaluation of Imbalance Component and EM Radiation from Asymmetrical Differential-Paired Lines
Yoshiki Kayano; Yasunori Tsuda; Hiroshi Inoue
2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE), SOC INSTRUMENT CONTROL ENGINEERS JAPAN, 422-427, 2012, Peer-reviwed, For actual Differential-signaling (DS) techniques such as low-voltage differential-signaling (LVDS), the ideal balance or symmetrical topology cannot be established, and hence, an imbalance component is excited in practical high-density packaging systems. In this paper, we newly attempt to identify and quantify the frequency responses of the imbalance component and electromagnetic (EM) radiation from asymmetrical differential-paired lines, using a physics-based model, which is constructed with an equivalent circuit model to calculate current distribution, and radiation model based on Hertzian dipole antenna. The physics-based model is validated by comparing the predicted results with FDTD simulation. The frequency response of EM radiation from asymmetrical differential-paired lines can be identified using our proposed model. This study has successfully established a basic method to effectively predict EM radiation from practical differential-paired lines.
International conference proceedings, English

A Study on Negative Group Delay Characteristics of Multi-Stage F-SIR Structure Driven by Differential-Mode
Xiaofan Yang; Yoshiki Kayano; Hiroshi Inoue
2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE), SOC INSTRUMENT CONTROL ENGINEERS JAPAN, 416-421, 2012, Peer-reviwed, Negative group delay characteristics can be used to signal processing devices such as equalizer for compensation of the group delay of systems, and pulse compression circuit of radar systems. In this paper, to clarify negative group delay characteristics achieved by planar structure, we designed the Folded-Stepped Impedance Resonator (F-SIR) structure on printed circuit board (PCB), which has the symmetrical electric-wall at the guide center driven by differential-mode. Firstly, the group delay characteristics are discussed experimentally and numerical modeling. It was demonstrated that the negative group delay is occurred at anti-resonant frequencies. Secondly, effect of structural parameters (resonator length, distance of gap, number of stage) of F-SIR on negative group delay characteristics is discussed. Finally, multi-stage F-SIR with different resonant frequencies and shorted output line was proposed. The negative group delay of -1.74ns, 10MHz bandwidth and relatively low-insertion loss (-30dB) can be achieved by proposed 3-stage F-SIR structure.
International conference proceedings, English

Arc Column and Voltage Fluctuations of Slowly Breaking Contact with External Magnetic Field
Kazuaki Miyanaga; Yoshiki Kayano; Hiroshi Inoue
2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE), SOC INSTRUMENT CONTROL ENGINEERS JAPAN, 54-59, 2012, Peer-reviwed, Since electromagnetic (EM) noise resulting from an arc discharge disturbs other electric devices, parameters on electromagnetic compatibility, as well as lifetime and reliability, are important properties for electrical contacts. To clarify the characteristics and the mechanism of the generation of the EM noise, the arc column and voltage fluctuations generated by slowly breaking contacts with external direct current (DC) magnetic field, up to 20mT, was investigated experimentally using AgSnO2 material. Firstly the motion of the arc column is measured by high-speed camera. Secondary, the distribution of the motion of the arc and contact voltage are discussed. Applying the DC magnetic field is effective in suppress the arc duration but voltage fluctuation increases. It was demonstrated that the contact voltage fluctuation in the arc duration is related to the arc column motion.
International conference proceedings, English

Identifying EM Radiation from Asymmetrical Differential-Paired Lines with Equi-Distance Routing
Yoshiki Kayano; Yasunori Tsuda; Hiroshi Inoue
2012 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), IEEE, 311-316, 2012, Peer-reviwed, Differential-signaling (DS) techniques such as low-voltage differential-signaling (LVDS) are widely used in digital electronic devices in order to establish a high-speed digital propagation with low-electromagnetic interference (EMI). For actual DS, the ideal balance or symmetrical topology cannot be established, and hence, an imbalance component is excited in practical high-density packaging systems. In this paper, we newly attempt to identify and quantify the frequency responses of the imbalance component and electromagnetic (EM) radiation when the structure and topology change from a symmetrical to an asymmetrical differential-paired lines with equi-distance routing, using a physics-based model, which is constructed with an equivalent circuit model to calculate current distribution, and radiation model based on Hertzian dipole antenna. The physics-based model is validated by comparing the predicted results with FDTD simulation. The frequency response of EM radiation from asymmetrical differential-paired lines can be identified using our proposed model. This study has successfully established a basic method to effectively predict EM radiation from practical differential-paired lines.
International conference proceedings, English

Evaluation of Imbalance Component and EM Radiation Generated by an Asymmetrical Differential-Paired Lines Structure
Y. Kayano; K. Mimura; H. Inoue
Trans. JIEP, JIEP, 4, 1, 6-16, Dec. 2011, Peer-reviwed, Recently, differential-signaling (DS) techniques such as low-voltage differential-signaling (LVDS) have been widely used in digital electronics devices in order to suppress electromagnetic interference (EMI). But in practical terms, a complete topologically and structurally symmetrical differential line is impossible. In this paper, we newly attempt to quantify the imbalance component and electromagnetic (EM) radiation when the structure and topology change from a symmetrical to an asymmetrical differential paired lines. Four different differential-paired lines structures are prepared for the comparison: PCB1 is a basic symmetrical structure taken as an "ideally balanced" case, PCB2 is an asymmetrical structure due to differences in bend and length, PCB3 is a symmetrical length structure with a bend region, and PCB4 is an asymmetrical topology with equi-distance and bend routing. Firstly, the differential voltages and mixed-mode scattering parameters are selected as a measure. The conversion parameter from differential-mode (balance component) to common-mode (imbalance component), S_cd21, is dramatically increased by the difference of the length. Even if the differential paired lines have a bend-region, equi-distance routing can suppress S_cd21. Secondly, spatial distributions of near magnetic fields are measured at certain resonant and out of resonant frequencies of S_cd21. Although the differential paired lines are excited by the differential-mode, propagated magnetic field component at the end terminal of the differential paired lines at the resonant frequencies of S_cd21 could be changed to the common-mode. Thirdly, the far-electric fields at 3 m are measured and calculated. Even if equi-distance routing is suitable for the improvement of signal integrity (SI) issues, it is not enough for the suppression of the far-field potential radiation. It is clear that S_cd21 is one evaluator but it is not sufficient for predicting the EM radiation completely. The facts shown in this study suggest the basic characteristics of EM radiation from practical differential paired lines with asymmetrical structure and some significant problems in the design of a meander delay line for high-speed clock distribution.
Scientific journal, English

A study on characteristics of EM radiation from stripline structure
Yoshiki Kayano; Hiroshi Inoue
RADIO SCIENCE, AMER GEOPHYSICAL UNION, 46, 5, 2011RS004735, Oct. 2011, Peer-reviwed, In recent years, effective methods for predicting and suppressing electromagnetic interference over a broad band are required. In this paper, we focus on the prediction of electromagnetic (EM) radiation from a stripline structure with a ground thin wire by an equivalent circuit model. First, frequency responses of common-mode (CM) current on the printed circuit board and EM radiation are studied with finite difference time domain modeling. Secondly, an equivalent circuit model for predicting CM current is proposed. The equivalent circuit model for prediction is based on the concepts of CM antenna impedance, distributed constant circuit, and electric coupling between the power plane and the thin ground wire. Good agreement between the predicted and full-wave analysis results indicates the validity of the proposed equivalent circuit model. The frequency response of EM radiation from the stripline structure can be identified using our proposed model. In addition, the equivalent circuit model provides enough flexibility for different geometric parameters and can be used to develop physical insights and design guidelines.
Scientific journal, English

Contact Conditions in Connectors that Cause Common Mode Radiation
Yu-ichi Hayashi; Yoshiki Kayano; Takaaki Mizuki; Hideaki Sone; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94C, 9, 1369-1374, Sep. 2011, Peer-reviwed, When contact failure occurs in a connector in a coaxial high-frequency (HF) signal transmission line, it is well known that common-mode (CM) radiation occurs on the line. We focus on contact conditions in a connector causing such CM radiation. Experiments and simulations verify that CM radiation increases as the contact resistance increases. While the CM current strongly depends on the distribution pattern of contact resistances at a low resistance, the CM current does not depend on these pattern at a high resistance. Our results indicate that it is important to maintain a symmetrical distribution of contact spots whenever the number of such spots is four or more.
Scientific journal, English

Effect of Heat Conductivity on Bridge Break at Different Material Contact Pairs
Kazuaki Miyanaga; Yoshiki Kayano; Takashi Komakine; Hiroshi Inoue; Tasuku Takagi
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E94C, 9, 1431-1434, Sep. 2011, Peer-reviwed, In this paper, to clarify the thermal effect of the bridge for long lifetime contacts, the effects of heat conductivity on bridge break at different material contact pairs were discussed experimentally. To examine the relationship between the bridge and material, the electrode materials of the anode and the cathode were chosen as the same and the different material pairs in this experiment. Ag, AgPd60 and Pd were chosen as the electrode materials, because Ag, AgPd60 and Pd had the different thermal diffusivity. Firstly, the voltage waveforms in the bridge with different material pair were compared to the voltage waveform with the same material pair case. Secondary, the effects of heat conductivity on the break of bridge were discussed. In the results, the bridge voltage waveform depends on the electrode material at anode side. The length of the bridge at bridge break depends on the heat conductivity of the electrode material at anode side. This study provides the basic considerations on the thermal condition of the bridge break.
Scientific journal, English

EMC Problem Caused by Arc Discharge at Slowly Separating Silver-Based Contacts
H. Inoue; Y. Kayano; K. Miyanaga
Proc. 2011 Asia-Pacific International Symposium on EMC, S-We5-5, May 2011, Peer-reviwed
International conference proceedings, English

Prediction of EM Radiation at GHz Frequency from a PCB Driven by a Connected Feed Cable
Y. Kayano; H. Inoue
Proc. 2011 Asia-Pacific International Symposium on EMC, S-Tu2-5, May 2011, Peer-reviwed
International conference proceedings, English

The Correlation between Imbalance Component and EM Radiation from a Differential-Paired Line with Different Length
Y. Kayano; K. Mimura; H. Inoue
Proc. International Conference on Electronics Packaging, 103-108, Apr. 2011, Peer-reviwed
International conference proceedings, English

電圧制御低域通過フィルタの特性に関する一検討
小林 吾生; 萓野 良樹; 井上 浩
電気関係学会東北支部連合大会講演論文集, 電気関係学会東北支部連合大会実行委員会, 2011, 270-270, 2011
Japanese

Electromagnetic radiation resulting from strip line structure driven by a feed cable
Yoshiki Kayano; Hiroshi Inoue
IEEE International Symposium on Electromagnetic Compatibility, 161-166, 2011, Peer-reviwed, Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. Effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we newly focus on identifying the frequency response of EM radiation from a strip line structure driven by a connected feed cable. To provide basic considerations for the realization of methods for predicting the EM radiation from strip line structure driven by a feed cable, the characteristics of the EMI of test model PCB are investigated in this paper experimentally and by numerical modeling. Firstly, frequency responses of common-mode (CM) current and EM radiation from a PCB without the feed cable are discussed by FDTD modeling. It was demonstrated that SL and shield structures without a feed cable are effective in suppressing the EMI. Secondly, CM current on the feed cable attached to the PCB is studied experimentally and compared with FDTD modeling. Due to the additional displacement current path, SL structure driven by the feed cable is not effective in suppressing EMI. EMC design guideline commonly suggests that the strip line structure rather than microstrip line structure should be used in PCB structure. The results in this study indicate that SL and Shield cases yield resonances with high level peaks, due to the feed cable. This study successfully provides a basic model to effectively predict EM radiation from a stripline structure. © 2011 IEEE.
International conference proceedings, English

Electromagnetic Radiation Resulting from Strip Line Structure Driven by a Feed Cable
Yoshiki Kayano; Hiroshi Inoue
2011 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), IEEE, 161-166, 2011, Peer-reviwed, Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. Effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we newly focus on identifying the frequency response of EM radiation from a strip line structure driven by a connected feed cable. To provide basic considerations for the realization of methods for predicting the EM radiation from strip line structure driven by a feed cable, the characteristics of the EMI of test model PCB are investigated in this paper experimentally and by numerical modeling. Firstly, frequency responses of common-mode (CM) current and EM radiation from a PCB without the feed cable are discussed by FDTD modeling. It was demonstrated that SL and shield structures without a feed cable are effective in suppressing the EMI. Secondly, CM current on the feed cable attached to the PCB is studied experimentally and compared with FDTD modeling. Due to the additional displacement current path, "SL" structure driven by the feed cable is not effective in suppressing EMI. EMC design guideline commonly suggests that the strip line structure rather than microstrip line structure should be used in PCB structure. The results in this study indicate that "SL" and "Shield" cases yield resonances with high level peaks, due to the feed cable. This study successfully provides a basic model to effectively predict EM radiation from a stripline structure.
International conference proceedings, English

Identifying EM Radiation from a Printed Circuit Board Driven by Differential-Signaling
Y. Kayano; H. Inoue
Trans. of JIEP, JIEP, 3, 1, 24-30, Dec. 2010, Peer-reviwed
Scientific journal, English

The Contribution of Heat Conduction to Bridge Length and Diameter
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Proc. the Joint Meeting 25th International Conference on Electrical Contacts & 56th IEEE Holm Conference on Electrical Contacts, 153-157, Oct. 2010, Peer-reviwed
International conference proceedings, English

Information Leakage from Cryptographic Hardware via Common-Mode Current
Y. Hayashi; T. Sugawara; Y. Kayano; N. Homma; T. Mizuki; A. Satoh; T. Aoki; S. Minegishi; H. Sone; H. Inoue
2010 IEEE International Symposium on Electromagnetic Compatibility, 109-114, 27 Jul. 2010, Peer-reviwed, Invited
International conference proceedings, English

Left Hand Mode Transmission Line Characteristics Made by F-SIR Structure on PCB
Ryosuke Yanagisawa; Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON COMMUNICATIONS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E93B, 7, 1855-1857, Jul. 2010, Peer-reviwed, Basic left hand mode transmission line (LH mode TL) characteristics made on PCB is an important future issue for the application of the EMC field. In this paper, possibility of a LH mode TL characteristic made by a folded-stepped impedance resonator (F-SIR) type is investigated experimentally and numerically. The experimental and calculated from FEM and equivalent circuit results indicate that some backward propagation characteristic and negative group delay can be established by F-SIR structure.
Scientific journal, English

Equivalent Circuit Analysis of F-SIR Structure with Negative Group Time Delay
R. Yanagisawa; Y. Kayano; H. Inoue
Proc. Pan-Pacific EMC Joint Meeting’10, 31-34, May 2010
International conference proceedings, English

The Correlation between Imbalance Current and EM Radiation from a Printed Circuit Board Driven by Differential-Signaling
Y. Kayano; R. Hashiya; H. Inoue
Proc. International Conference on Electronics Packaging, 608-613, May 2010, Peer-reviwed
International conference proceedings, English

Current noise up to GHz band generated by slowly breaking silver-compound contacts with external dc magnetic field
H. Inoue; H. Miura; Y. Kayano; K. Miyanaga
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, CAMBRIDGE UNIV PRESS, 49, 2, 22098, Feb. 2010, Peer-reviwed, Since electromagnetic (EM) noise resulting from an arc discharge disturbs other electric devices, parameters on electromagnetic compatibility, as well as lifetime and reliability, are important properties for electrical contacts. To clarify the characteristics and the mechanism of the generation of the EM noise, the current noise up to GHz band frequency generated by slowly breaking contacts with external direct current (dc) magnetic field, up to 40 mT, was investigated experimentally using Ag and AgSnO(2) material. To reveal the characteristics as pure clean surface contact operation, the arc only at the operation of the first contact break was measured. Firstly, the effect of the external dc magnetic field on the duration and voltage fluctuation of the breaking arc of AgSnO(2) material, which has relatively longer arc duration, was quantified. The experimental results on AgSnO(2) material newly revealed that although applying external dc magnetic field is effective in reduction of duration of gaseous phase in arc discharge, higher variation of contact voltage in the gaseous phase which results in high frequency noise is caused. Secondly, the effect of the external dc magnetic field on the breaking arc of Ag was measured. It was found that larger current noise arises, when the contact voltage is rapidly varied at the arc discharge. There are two kinds of rapid changes, which cause high-frequency EMC problem, in the voltage waveform. One is at extinction of arc discharge. Other kind is short-duration arc (short-arc) before the ignition of the continuous metallic arc. Especially, we focused on the characteristics of the short-arc at the initial of the opening of the contact for clarifying the high frequency EMC problem. It was demonstrated that the spectrum of current noise in the case of "B = 30 mT" is smaller than that in the case of "B = 0 mT". In addition, duration and fluctuation of short-arc is suppressed by the dc magnetic field. These results are basic and useful finding to know not only the noise generation in the contact-breaking phenomena but also the material dependency for EMC problems.
Scientific journal, English

Predicting CM radiation from strip line structure by equivalent circuit model
Yoshiki Kayano; Hiroshi Inoue
IEEE International Symposium on Electromagnetic Compatibility, 748-753, 2010, Peer-reviwed, In recent years, effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we newly focus on prediction of EM radiation from a strip line structure by an equivalent circuit model. Firstly, frequency responses of common-mode (CM) current on the PCB and EM radiation are studied with FDTD modeling. It was demonstrated that the ground plane of the PCB is the dominant radiation factor at low frequencies. Secondly, an equivalent circuit model for predicting CM current was proposed. The equivalent circuit model is based on consideration of concepts of CM antenna impedance to current- and voltage-driven mechanisms. The good agreement between the predicted and full-wave results indicates the validity of the equivalent circuit model. The frequency response of EM radiation from microstrip/strip line structure can be identified using our proposed model. ©2010 IEEE.
International conference proceedings, English

Negative Group Delay Circuit fabricated in an Integrated Circuit Chip
Yoshiki Kayano; Ryosuke Yanagisawa; Hiroshi Inoue
2010 ASIA-PACIFIC INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY & TECHNICAL EXHIBITION ON EMC RF/MICROWAVE MEASUREMENTS & INSTRUMENTATION, IEEE, 1116-1119, 2010, Peer-reviwed, Basic left-handed transmission line (LH-TL) characteristics made on PCB is an important future issue for the application of the EMC field. In this paper, possibility of transmission line with negative group delay characteristic in an integrated circuit is investigated experimentally and numerically. The measured and simulated results demonstrated the usability of the LH-TL. The experimental results indicate some negative group delay characteristic but the differences with the calculation is still existed at higher frequencies.
International conference proceedings, English

Predicting CM Radiation from Strip Line Structure by Equivalent Circuit Model
Yoshiki Kayano; Hiroshi Inoue
2010 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC 2010), IEEE, 748-753, 2010, Peer-reviwed, In recent years, effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we newly focus on prediction of EM radiation from a strip line structure by an equivalent circuit model. Firstly, frequency responses of common-mode (CM) current on the PCB and EM radiation are studied with FDTD modeling. It was demonstrated that the ground plane of the PCB is the dominant radiation factor at low frequencies. Secondly, an equivalent circuit model for predicting CM current was proposed. The equivalent circuit model is based on consideration of concepts of CM antenna impedance to current-and voltage-driven mechanisms. The good agreement between the predicted and full-wave results indicates the validity of the equivalent circuit model. The frequency response of EM radiation from microstrip/strip line structure can be identified using our proposed model.
International conference proceedings, English

Voltage Fluctuation of Short-Time Arc at Slowly Separating Silver-Based Contacts
Yoshiki Kayano; Kazuaki Miyanaga; Hiroshi Inoue
PROCEEDINGS OF THE FIFTY-SIXTH IEEE HOLM CONFERENCE ON ELECTRICAL CONTACTS, IEEE, 18-23, 2010, Peer-reviwed, Arc discharge at breaking electrical contact is considered as a main source of an undesired electromagnetic (EM) noise. Short-duration time arc before an ignition of the continuous metallic arc discharge arises and causes high frequency EM noise. To clarify the characteristics and the mechanism of the generation of EM noise, the fluctuation of voltage and duration of short-time arc at slowly separating silver-based contacts are investigated experimentally in this paper. The opening velocity of the moving electrode was 60 mu m/s and it was determined so that it satisfied quasi-thermal equilibrium condition. Ag and Ag-88.3wt% SnO211.7wt% were chosen as contact test material. Breaking waveforms and aspects are measured. The voltage fluctuation for the Ag material case is larger than that for the Ag-88.3wt% SnO211.7wt%. For the Ag material case, some short-duration time arcs before the ignition of the continuous metallic arc discharge are observed. The arc duration of the continuous metallic arc at the first operation is relatively short. The measured aspects by highspeed camera indicate that the locations of the short-time arc are changed by each short-time arc. As operation numbers increase, arc duration becomes longer rapidly. The measured aspects by the high-speed camera indicated that the locations of the short-time arc are changed by each short-time arc and melting region on the contact surface due to the short-time arcs is enlarged dramatically by the short-time arc. These results are basic and useful finding and consideration to clarify not only the correspondence to noise generation of the contact-breaking phenomena but the material dependency for EMC problems.
International conference proceedings, English

Improvements in GMI Probe Design for Time-Domain Transient Current Measurements
Fan Zhou; Songping Wu; David Pommerenke; Yoshiki Kayano; Hiroshi Inoue; Kenji Tan; Jun Fan
2010 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC 2010), IEEE, 340-343, 2010, Peer-reviwed, Measurement techniques for time-domain transient currents are widely needed in many EMC applications. Demonstrated to have a lot of potential for this purpose, giant magnetio-impedance (GMI) probes are studied in this paper. Improvements in the probe design, including a balanced circuit for increased signal to noise ratio and an on-probe magnetic-field bias circuit, are proposed. These improvements in the probe design make the GMI probes more suitable for practical applications of time-domain transient current measurements.
International conference proceedings, English

Measuring IC Switching Current Waveforms Using a GMI Probe for Power Integrity Studies
Fan Zhou; Songping Wu; David Pommerenke; Yoshiki Kayano; Hiroshi Inoue; Kenji Tan; Jun Fan
2010 ASIA-PACIFIC INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY & TECHNICAL EXHIBITION ON EMC RF/MICROWAVE MEASUREMENTS & INSTRUMENTATION, IEEE, 317-320, 2010, Peer-reviwed, IC switching current is the main noise source of many power integrity issues in printed circuit boards. Accurate measurement of the current waveforms is critical for an effective power distribution network design. In this paper, using a giant magnetoimpedance (GMI) probe for this purpose is studied. A side-band detection and demodulation system is built up to measure various time-domain waveforms using an oscilloscope. It is found that the GMI probes are potentially suitable for this kind of time-domain measurements, but probe designs and measurement setups need further improvements for this application.
International conference proceedings, English

Effect of holder heat capacity on bridge shape at low speed breaking contact
Kazuaki Miyanaga; Yoshiki Kayano; Tasuku Takagi; Hiroshi Inoue
IEICE Transactions on Electronics, Institute of Electronics, Information and Communication, Engineers, IEICE, E93-C, 9, 1456-1459, 2010, Peer-reviwed, In order to clarify the physics of contact life time, the relationship between heat capacity of holder and shape of bridge (length and diameter) is discussed in this paper. The AgPd60 alloy is chosen as electrode material. Two holders with different heat capacity are comprised of copper plate and cylinder. The shape of the bridge at the low speed breaking contact is observed by using the high speed digital camera. It was demonstrated that the shape of the bridge is changed by the response and distribution of the temperature. Copyright © 2010 The Institute of Electronics, Information and Communication Engineers.
International conference proceedings, English

A study on relationship between contact temperature and bridge shape at low speed breaking contact
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Proc. the 3rd International Conference on Reliability of Electrical Products and Electrical Contacts 2009, 58-62, Oct. 2009
International conference proceedings, English

Effect of Heating Value on Contact Diameter at Low Speed Breaking Contact
Kazuaki Miyanaga; Yoshiki Kayano; Tasuku Takagi; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E92C, 8, 1020-1022, Aug. 2009, Peer-reviwed, It is necessary to know how the contact voltage and contact area vary with time to clarify the physics of contact lifetime and contact resistance. In this paper, to clarify the effect of the heating value on the diameter of the contact area, the variations of the contact voltage and contact diameter with time are measured at a low-speed breaking contact near the thermal equilibrium condition under which a stable bridge is generated. The effect of the heating value on the relationship between the contact diameter and the length of the bridge at breaking is also discussed. In the results, the contact voltage waveform was found to be macroscopically proportional to the displacement of the moving electrode l(c). On the other hand, the contact diameter d(c) decreased slightly with increasing l(c). At all currents investigated d(c) decreased when l(c) increased. The length of the bridge at breaking was increased by increasing the current. A large heating value of the contact area resulted in a long bridge because the volume of the melted metal increases.
Scientific journal, English

Left-Handed Transmission Line Characteristics Made by F-SIR Structure on PCB
R. Yanagisawa; Y. Kayano; H. Inoue
Proc. International Symposium on EMC, 645-648, Jul. 2009, Peer-reviwed
International conference proceedings, English

Transmission and Coupling Characteristics of Transmission Line in IC Chip
Y. Kayano; H. Inoue
Proc. International Symposium on EMC, 591-594, Jul. 2009
International conference proceedings, English

An Analysis of Information Leakage from a Cryptographic Hardware via Common-Mode Current
Yu-ichi Hayashi; Takeshi Sugawara; Yoshiki Kayano; Naofumi Homma; Takaaki Mizuki; Akashi Satoh; Takafumi Aoki; Shigeki Minegishi; Hideaki Sone; Hiroshi Inoue
Proceedings of the 2009 International Symposium on EMC, Kyoto, 21P1-5, 17-20, Jul. 2009, Peer-reviwed, Invited
International conference proceedings, English

Prediction of EM Radiation from a PCB Driven by a Connected Feed Cable
Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON COMMUNICATIONS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E92B, 6, 1920-1928, Jun. 2009, Peer-reviwed, Printed circuit boards (PCBs) driven by a connected feed cable are considered to be one of the main sources of the electromagnetic interference (EMI) from electronic devices. In this paper, a method for predicting the electromagnetic (EM) radiation from a PCB driven by a connected feed cable at up to gigahertz frequencies is proposed and demonstrated. The predictive model is based on the transmission line theory and current- and voltage-driven CM generation mechanisms with consideration of antenna impedance. Frequency responses of differential-mode (DM) and common-mode (CM) currents and far-electric field were investigated experimentally and with finite-difference time-domain (FDTD) modeling. First, the dominant component in total EM radiation from the PCB was identified by using the Source-Path-Antenna model. Although CM can dominate the total radiation at lower frequencies, DM is the dominant component above 3 GHz. Second, the method for predicting CM component at lower frequencies is proposed. And its validity was discussed by comparing FDTD calculated and measured results. Specifically, the relationship between the CM current and the terminating resistor was focused as important consequence for the prediction. Good agreement between the measured and predicted results shows the validity of the predicted results. The proposed model can predict CM current with sufficient accuracy, and also identify the primary coupling-mechanism of CM generation. Then far-electric field was predicted by using the proposed method. and it was demonstrated that outline of the frequency response of the undesired EM radiation from the PCB driven by the connected feed cable can be predicted with engineering accuracy (within 6 dB) up to 18 GHz. Finally, as example of application of equivalent circuit model to EMC design, effect of the width of the ground plane was predicted and discussed. The equivalent circuit model provides enough flexibility for different geometrical parameters and increases our ability to provide insights and design guidelines.
Scientific journal, English

Characteristics of EM Radiation from a PCB Driven by Feed-Cable
Y. Kayano; H. Inoue
Proc. 2009 Korea-Japan Joint Conference on AP/EMC/EMT, EMC-5-1, May 2009
International conference proceedings, English

Prediction of EM Radiation from a Printed Circuit Board Driven by Differential-Signaling
Y. Kayano; H. Inoue
Proc. International Conference on Electronics Packaging, 144-149, Apr. 2009, Peer-reviwed
International conference proceedings, English

EM Radiation from Interconnected Surface-Microstrip Line Structures by a Coaxial Cable
Yoshiki Kayano; Hiroshi Inoue
EMC 2009: IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, TECHNICAL PAPER, IEEE, 51-56, 2009, Peer-reviwed, In recent years, effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we focus on an equivalent circuit model for predicting EM radiation from a surface-microstrip line (S-MSL) structure with an interconnection coaxial cable. Firstly, frequency responses of common-mode (CM) current on the interconnection coaxial cable and EM radiation are studied experimentally and compared with FDTD modeling. It was demonstrated that the ground plane of the interconnected PCBs and the interconnection cable are the dominant radiation factor at low frequencies. Secondly, an equivalent circuit model for predicting CM current in the ground. connection model was proposed. The equivalent circuit model is based on consideration of concepts of CM antenna impedance to current- and voltage-driven mechanisms. Its validity was discussed by comparing FDTD simulation results. The good agreement between the predicted and measured results indicates the validity of the equivalent circuit model.
International conference proceedings, English

On Contact Conditions in Connectors to Cause Common Mode Radiation
Y. Hayashi; Y. Kayano; T. Mizuki; H. Sone; H. Inoue
Proc. IEEE International Symposium on EMC, TUE-AM-5-OF-7-4, Aug. 2008, Peer-reviwed
International conference proceedings, English

The relationship between voltage and duration of short-time arc generated by slowly breaking silver contact
Yoshiki Kayano; Hikaru Miura; Kazuaki Miyanaga; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E91C, 8, 1230-1232, Aug. 2008, Peer-reviwed, Arc discharge generated by breaking electrical contact is considered as a main source of an undesired electromagnetic (EM) noise. To clarify mechanism of generation of the EM noise, feature extraction of bridge and short-time arc waveforms generated by slowly breaking Ag contact was discussed experimentally. The short-duration time arc before the ignition of the continuous metallic arc discharge was observed. The highest probability density voltage is defined as short-arc sustainable voltage (SASV). The relationship between SASV and duration of short-time are was quantified experimentally. It is revealed that as the arc voltage of the short-time arc is higher, its duration becomes longer.
Scientific journal, English

EM Radiation from a Printed Circuit Board with an Interconnection Cable Driven by Low-Voltage Differential-Signaling
Y. Kayano; Y. Ono; H. Inoue
Proc. International Conference on Electronics Packaging, 144-149, Jun. 2008, Peer-reviwed
International conference proceedings, English

Connected Relation Between Bridge and Arc and Temperature Rise at Slowly Breaking Contacts
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Proc. International Conference on Electrical Contacts, 347-352, Jun. 2008, Peer-reviwed
International conference proceedings, English

A Study on Effect of Noise Suppression Sheet on EM Radiation from a PCB
Y. Kayano; H. Inoue
Proc. Pan-Pacific EMC Joint Meeting, 11-12, May 2008
International conference proceedings, English

A Study on Electromagnetic Coupling between Transmission Line on Model Chip
Yoshiki Kayano; Hiroshi Inoue
2008 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, VOLS 1-3, IEEE, 333-337, 2008, Peer-reviwed, To clarify the electromagnetic compatibility (EMC) problems that related to the interconnection in the integrated circuit (IC) chip, transmission characteristics and electromagnetic coupling between wirings in the specially designed model transmission lines in IC chip were investigated. At first, model transmission lines, designed on the bear chip with the size of 4800 mu m square, were created as model parallel transmission lines with straight, right angle and bending lines. The measurement methods, usually used for transmission line on the printed circuit board, are applied to the sample IC. It was demonstrated that decrease of transmission coefficient and dramatically large far-end cross-talk enough to cause serious errors arise at gigahertz frequency band.
International conference proceedings, English

EM radiation through aperture of metallic enclosure with a PCB inside
Shogo Miyata; Yoshiki Kayano; Hiroshi Inoue
2008 ASIA-PACIFIC SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY AND 19TH INTERNATIONAL ZURICH SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, VOLS 1 AND 2, IEEE, 658-661, 2008, Peer-reviwed, Enclosure technique is widely used to control electromagnetic (EM) radiation from electronic devices. As the aperture of the enclosure causes leakage of EM wave, desired shielding effectiveness (SE) may not be satisfied. In this paper, as a basic study to establish EMC guideline for shielding enclosure with practical PCBs (Printed Circuit Boards), influence on EM radiation through aperture of metallic enclosure with a PCB inside was investigated. A typical metallic enclosure, 300x200x100 mm(3), with an aperture, 20002 mm(2) and PCB of 230x55 mm 2 are used to experiment and calculation. The PCB is put in the enclosure and the placement of the PCB, angle of the PCB a, are changed. Firstly, angle-pattern and frequency responses of far-electric fields were discussed. It was demonstrated that PCB placement influences resonance and strength of the EM radiation from aperture of the enclosure. Horizontal and vertical component of EM radiation is the smallest in five test placements at the "alpha = 270 degrees" case in which signal trace is turned opposite side of aperture. Secondly, frequency response of SE, which defined as the ratio of EM field level of "PCB only" case, which means without enclosure, to "PCB in enclosure" case, is discussed. The alpha = 270 case has the largest SE. Finally, the electric field distribution was also discussed by calculation to understand the details of the effect of PCB placement It was demonstrated that electric-coupling between PCB and wall of aperture side in the alpha = 270 case is weakened. This study is the basic but new considerations to realize method for suppressing EM radiation from a PCB with practical engineering stand point.
International conference proceedings, English

Effect of the thermal constant on temperature rise of silver palladium alloy contacts
Kazuaki Miyanaga; Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E90C, 7, 1405-1411, Jul. 2007, Peer-reviwed, In this paper, a method of separating the effects of the thermal diffusivity, durations and integral powers of the bridge and arc on the temperature rise of AgPd contacts was proposed. First, the effects of the Pd content on the durations and integral powers of the bridge and arc, and the temperature rise of the contacts were discussed. Because the integral power of bridge was larger than that of the arc under our experimental conditions of 40 V open-circuit, 5 A close-circuit and 100 mu m/s opening velocity, the temperature rise of the contacts was dominated by the bridge. No remarked difference in bridge duration can be seen among the six materials. Although the integral power of the bridge in the case of I'd was maximum, the maximum temperature rise of the contact was observed in the case of AgPd60. To clarify the contribution of each factor, the effect of thermal diffusivity on the temperature rise of the contact was evaluated by the finite-difference time-domain (FDTD) method. In the case of Pd, because its thermal diffusivity was largest, heat diffused rapidly. On the other hand, the thermal diffusivity in the case of AgPd60 was small, and heat diffused slowly to the holders. The maximum temperature rise was observed in the case of AgPd60. It was demonstrated that the proposed method of separating the effects of thermal diffusivity, durations and integral powers of the bridge and arc on the temperature rise of contacts is effective in enabling us to understand contact phenomena.
Scientific journal, English

Current and radiation noise up to GHz band generated by slowly breaking silver-compound contacts
Yoshiki Kayano; Tatsuya Nakamura; Kazuaki Miyanaga; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E90C, 7, 1504-1506, Jul. 2007, Peer-reviwed, To clarify the mechanism of the generation of electromagnetic (EM) noise, current and radiation noise up to the GHz band generated by slowly breaking silver-compound contacts were investigated experimentally. The current and radiation noise at the GHz band were observed. It was demonstrated that the frequency spectrums of the current and radiation noise correspond to the frequency responses of the circuit admittance and radiation efficiency of the experimental setup, respectively. It was revealed that even if current noise at the GHz band is very small, it can cause a large EM radiation noise because of the high radiation efficiency. From the time-frequency domain characteristics of current noise, it was clarified that the peaks of current noise at 10 MHz band arise immediately after the initiation of the are discharge and the transition from metallic phase to gaseous phase. On the other hand, the peak current noise above 100 MHz arises immediately after the initiation of the arc discharge.
Scientific journal, English

Electromagnetic Radiation Resulting from Printed Circuit Board with Attached Interconnection Cable Driven by Low Voltage Differential Signaling
Y. Kayano; M. Nakano; H. Inoue
Proc. International Conference on Electronics Packaging, 290-295, Apr. 2007, Peer-reviwed
International conference proceedings, English

Electromagnetic radiation of printed circuit board and electrical contacts
Hiroshi Inoue; Yoshiki Kayano
Proceedings of the 2nd International Conference on Reliability of Electrical Products and Electrical Contacts, CHINA SCIENCE TECHNOLOGY PRESS, 172-177, 2007, Peer-reviwed, Research results on the radiation of MHz to GHz frequency band from 1) a printed circuit board (PCB) and 2) slowly breaking contact (SBC) are discussed as examples of Electromagnetic Compatibility (EMC) and reliability problem for electronic systems.
In first part, numerical and experimental results of the common and differential mode radiations from a sample PCB are described. The calculation has been done by the finite difference time domain (FDTD) method using super computer. The typical size of a sample PCB under test is 150mm length, 100mm width and 1.53mm thickness made by FR4 material. A model of signal line is microstrip line with 2.8mm width which is matched for 50 ohm characteristic impedance. The results show connection of the PCB and line is important source of the undesired electromagnetic noise.
In second part, experimental results of electromagnetic noise from the breaking switch measured by the current probe and in anechoic chamber are described. The opening speed of the contact is about 100 micron meter per second, the current is 4.5 A, 36 V and the material of the electrodes are mainly silver. It is newly revealed that slowly opening contacts generate very high electromagnetic current and radiation noise more than 1 GHz.
International conference proceedings, English

EMI resulting from interconnected printed circuit boards by a coaxial cable
Yoshiki Kayano; Hiroshi Inoue
2007 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY: WORKSHOP AND TUTORIAL NOTES, VOLS 1-3, IEEE, 571-575, 2007, Peer-reviwed, To provide basic considerations for the realization of methods for predicting the electromagnetic (EM) radiation from interconnected printed circuit boards (PCBs) by a coaxial cable, the characteristics of the EM interference of test model PCB are investigated in this paper by experiment and numerical modeling. Comparing the cases with and without the interconnection, the ground plane of the interconnected PCBs and the interconnection cable are dominant radiation factor in the lower frequencies. These factors construct large common-mode (CM) antenna. On the other hand, the total EM radiation at GHz frequencies is simply determined by the differential-mode (DM) current on the signal trace, and cross-talk current on the victim traces. Consequently, correct predictions of CM current at lower frequencies and cross-talk are keys to the prediction of the total EMI behavior of the interconnected PCBs, because the DM current on the signal trace can be predicted by transmission line theory.
International conference proceedings, English

Detection of high-frequency magnetic fields by a GMI probe
Kenji Tan; Takashi Komakine; Kiyoshi Yamakawa; Yoshiki Kayano; Hiroshi Inoue; Masahiro Yamaguchi
IEEE TRANSACTIONS ON MAGNETICS, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 42, 10, 3329-3331, Oct. 2006, Peer-reviwed, A giant magnetoimpedance (GMI) probe was fabricated in order to detect high-frequency magnetic fields. Magnetic near field measurements were carried out using the probe. A microstrip line driven by a current whose frequency was changed from 500 Hz to 1 GHz was used as a signal source in the measurements. The probe could clearly detect the characteristics of the field distribution such as high magnetic field strengths near both longitudinal edges of the signal plane of the microstrip line and null points. At a signal frequency of 100 MHz, the experimental result was compared with numerical calculation data. The output profile of the measurement agreed well with the profile of the calculated field distribution. The detection of the characteristics and the agreement indicate the potential that the GMI probe has high spatial resolution in a wide frequency range.
Scientific journal, English

A study on separation of heat generation and heat transfer related to temperature rise of silver palladium contact
Kazuaki Miyanaga; Yoshiki Kayano; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E89C, 8, 1129-1135, Aug. 2006, Peer-reviwed, In this paper, the separation of heat generation and heat transfer related to temperature rise of silver palladium contact was investigated experimentally in order to predict the temperature rise of contact by the use conditions such as voltage range between 25 to 40 V, current range between 3.2 to 5.0 A and silver palladium alloy (AgPd) materials. Firstly, relationship between temperature rise of contact and supply power was discussed. The effects of heat generation and heat transfer on temperature rise were separated and quantified by least squares method. Secondly, effects of durations and integral powers of bridge and arc on temperature rise were also discussed by changing supply power. Results show that the integral power of the bridge increases when supply power increases. As the supply power increases, integral power of are also increases. The temperature rise is dominated by integral power of bridge. Remarkable difference of bridge duration can not be seen in the five materials (AgPd30, AgPd40, AgPd50, AgPd70 and Pd). The supply power is increased, arc duration gets longer. As weight percent of I'd content increases, the effect of supply power on arc duration becomes larger. Consequently, the integral power of arc increases. This study is a basic consideration to realize methods predicting temperature rise of contact.
Scientific journal, English

Electromagnetic radiation resulting from two signal traces on a printed circuit board
Yoshiki Kayano; Motoshi Tanaka; Hiroshi Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E89C, 8, 1217-1223, Aug. 2006, Peer-reviwed, To provide basic considerations for the realization of methods for predicting the electromagnetic (EM) radiation from a printed circuit board (PCB) with plural signal traces driven in the even-mode, the characteristics of the EM radiation resulting from two signal traces on a PCB are investigated experimentally and by numerical modeling. First, the frequency responses of common-mode (CM) current and far-electric field as electromagnetic interference (EMI) are discussed. As the two traces are moved closer to the PCB edge, CM current and far-electric field increase. The frequency responses in the two signal trace case can be identified using insights gained from the single trace case. Second, to understand the details of the increase in CM current, the distribution of the current density on the ground plane is calculated and discussed. Although crosstalk ensues, the rule for PCB design is to keep two high-speed traces on the interior of the PCB whenever possible, from the point of view of EM radiation. Finally, an empirical formula to quantify the relationship between the positions of two traces and CM current is provided and discussed by comparing four different models. Results calculated with the empirical formula and finite-difference time-domain (FDTD) modeling are in good agreement, which indicates the empirical formula may be useful for developing EMI design guidelines.
Scientific journal, English

Numerical Modeling on Heat Conduction of the Electrical Contact at Breaking Operation by FDTD-HCE
K. Miyanaga; T. Nakamura; Y. Kayano; H. Inoue
Proc. International Conference on Electrical Contacts, 373-377, Jun. 2006, Peer-reviwed
International conference proceedings, English

A Study on the Current and Radiation Noises from 30M to 3GHz Generated by Slowly Breaking Silver Compound Contacts
T. Nakamura; K. Miyanaga; Y. Kayano; H. Inoue
Proc. International Conference on Electrical Contacts, 81-86, Jun. 2006, Peer-reviwed
International conference proceedings, English

A Study on Magnetic Field Measurements by a High-Frequency-Carrier Type Magnetic Probe
Y. Kayano; K. Tan; K. Yamakawa; T. Komakine; H. Inoue
Proc. International Conference on Electronics Packaging, 190-195, Apr. 2006, Peer-reviwed
International conference proceedings, English

Detection of wide band signal by a high frequency carrier-type magnetic probe
K Tan; K Yamakawa; T Komakine; M Yamaguchi; Y Kayano; H Inoue
JOURNAL OF APPLIED PHYSICS, AMER INST PHYSICS, 99, 8, 08B315, Apr. 2006, Peer-reviwed, A high frequency carrier-type magnetic field sensor [gaint magnetoimpedance (GMI) sensor] probe with a narrow magnetic strip was fabricated. High frequency field detection was performed by this probe. For specific dc bias fields, high sensitivity could be achieved in a wide range of frequency from 5 kHz to 1 GHz. The sensitivity with a high dc bias field was lower than that with a low dc bias field. The outputs of the GMI probe were proportional to input power which generated the ac magnetic field. (C) 2006 American Institute of Physics.
Scientific journal, English

EMI of printed circuit board and its modeling
M Tanaka; Y Kayano; H Inoue
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS, SCRIPTA TECHNICA-JOHN WILEY & SONS, 89, 4, 22-31, 2006, Peer-reviwed, Measurement and modeling of the undesired electromagnetic waves (electromagnetic noise) from electronic devices play an important role in the understanding of EMI problems and in establishing design techniques. One of the methods of analysis of the EMI problems of electronic devices is the measurement of the common mode current flowing in the cables connected to the electronic devices. This paper reviews the measurement of the common mode current on printed circuit boards (PCB) and discusses results related to the EMI problems of PCB. FDTD modeling of the common mode current by traces placed near the PCB edge and suppression of the common mode current by the guard band are described. (c) 2005 Wiley Periodicals, Inc.
Scientific journal, English

An equivalent circuit model for predicting EM radiation from a PCB driven by a connected feed cable
Yoshiki Kayano; Motoshi Tanaka; Hiroshi Inoue
2006 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, VOLS 1-3, PROCEEDINGS, IEEE, 166-171, 2006, Peer-reviwed, An equivalent circuit model for predicting electromagnetic (EM) radiation from a printed circuit board (PCB) driven by a connected feed cable is proposed and demonstrated. The equivalent circuit model is based on consideration of concepts of CM antenna impedance and distributed constant circuit to the conventional mechanisms of current- and voltage-driven. Good agreement between the predicted and measured results shows validity of the equivalent circuit model. The proposed model can predict and explain frequency response of CM current with engineering accuracy, and also express the intermediate state of the current-driven and the voltage-driven. It is demonstrated that outline of the frequency response of EM radiation from the PCB driven by the connected feed cable can be predicted up to 18 GHz. This study suggests basic method and consideration to establish methods predicting an EM radiation from the PCB driven by the connected feed cable.
International conference proceedings, English

Mechanisms of the Undesired EM Radiation from a PCB with a Feed Cable
Y. Kayano; M. Tanaka; H. Inoue
Proc. International Conference on Materials Engineering for Resources, 485-490, Oct. 2005
International conference proceedings, English

PCB Structure with a Guard Band for Suppressing Electromagnetic Radiation
Y. Kayano; M. Tanaka; H. Inoue
IEICE Trans. Commun., IEICE, E88-B, 8, 3182-3188, Aug. 2005, Peer-reviwed, Electromagnetic (EM) radiation from a feed cable attached to a printed circuit board (PCB), which is commonly encountered electromagnetic interference (EMI) problem at high-speed electronic PCB designs, is investigated by experimental and finite-difference time-domain (FDTD) modeling. In this paper, we propose and demonstrate a guard-band structure as a method for suppressing the EM radiation from a PCB with a feed cable. A signal trace is located between two ground traces (guard-band : GB). Four different cross-sectional PCB structures, which are commonly used in microwave integrated circuits as typical structures, are used to compare the guard-band structure. Frequency response of common-mode (CM) current, electric field near a PCB, and far electric field (radiated emission) are investigated as characteristics of the EMI. Results show that the shield structure is effective in suppressing the CM current at lower frequency. However, structures in which a conductive plate exists near the signal trace yield resonances with high level peak on CM current, near and far-field. On the other hand, the guard-band structure is more effective than other structures in suppressing the EM radiation in the considered frequency range. Therefore the guard-band will be effective for high-density PCB packaging with high-speed traces.
Scientific journal, English

Correspondence of common- and differential-mode components on EM radiation from surface microstrip line structure
Y Kayano; M Tanaka; H Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E88C, 8, 1688-1695, Aug. 2005, Peer-reviwed, It has been demonstrated that a common-mode (CM) current can dominate the EMI processes up to 1 GHz, despite the fact that a CM current is smaller than a differential-mode (DM) current. However, this description is insufficient to describe behavior above 1 GHz. In this paper the correspondence of CM and DM components for total electromagnetic (EM) radiation from a printed circuit board (PCB) with surface microstrip line, which is commonly used in microwave integrated circuits, at gigahertz frequency is studied experimentally and with finite-difference time-domain (FDTD) modeling. In order to characterize the EM radiation, the frequency response of the CM current, the electric field near the PCB, and the electric far field are investigated. First, the frequency response of the CM current, near and far-fields for the PCB with an attached feed cable are compared up to 5 GHz. Although the CM current decreases above a few gigahertz, near and far electric fields increase as the frequency becomes higher. Second, in order to distinguish between CM and DM radiation at high frequency, the frequency response and the angle pattern of the far-field from a PCB without the feed cable are discussed. The results show that radiation up to 1 GHz is related to the CM component. However, depending on polarization and PCB geometry, radiation may be dominated by the DM rather than the CM component. The results indicate that the DM component may be more significant relative to the CM component, and the increase in EM radiation can not be predicted from only the frequency response of CM current. Therefore, identifying the dominant component is essential for suppressing the EM radiation. This study is a basic consideration to realize a technique which is effective on the suppression of the EM radiation from the PCB with an attached feed cable.
Scientific journal, English

Characteristics of EM Radiation from a PCB at Gigahertz Frequency
Y. Kayano; M. Tanaka; H. Inoue
Proc. Pan-Pacific EMC Joint Meeting, 1, May 2005
International conference proceedings, English

EMI of Printed Circuit Board and Its Modeling
M. Tanaka; Y. Kayano; H. Inoue
IEICE Trans.Commun. (Japanese Ed.), IEICE, J88-B, 4, 709-717, Apr. 2005, Peer-reviwed
Scientific journal, Japanese

Radiated emission from a PCB with an attached cable resulting from a nonzero ground plane impedance
Y Kayano; M Tanaka; H Inoue
EMC 2005: IEEE International Symposium on Electromagnetic Compatibility, Vols 1-3, Proceedings, IEEE, 955-960, 2005, Peer-reviwed, In this paper, radiated emission from a PCB with an attached cable resulting from a nonzero ground plane impedance is studied experimentally and with FDTD modeling. Frequency responses of the CM current, the electric field near the PCB, and the electric far field are investigated. First, the effect of a thin wire to mimic an interconnected ground wire is discussed. Comparing the cases with and without the thin wire, the difference is only at the resonance frequency, and there is no change on the magnitude of the CM current. Second, the effect of a termination on EMI coupling-path that results from the nonzero ground plane impedance is discussed. When the terminating resistor is smaller than the nonzero impedance, EMI antenna is driven as current-driven. Therefore, for relatively low impedance load such as 51 Q, EMI antenna is driven as voltage-driven at lower frequency. As the terminating resistor is larger, the CM current becomes larger at lower frequencies (10 similar to 100 MHz). This indicates that a high impedance load such as a logic IC results in larger radiation at lower frequency.
International conference proceedings, English

Identifying the frequency response of common-mode current on a cable attached to a PCB
Y Kayano; M Tanaka; H Inoue
IEICE TRANSACTIONS ON ELECTRONICS, IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG, E87C, 8, 1268-1276, Aug. 2004, Peer-reviwed, Common-mode (CM) current on a feed cable attached to printed circuit board (PCB), which is one of main source of undesired electromagnetic radiation problem, is investigated by experimental and finite-difference time-domain (FDTD) modeling. In this paper, frequency responses of CM current on PCB and feed cable are modeled and analyzed as an electromagnetic interference (EMI) antenna, which depends on the configuration of PCB with a wire cable. Several different configurations are prepared to demonstrate the effect of PCB dimension on resonance frequencies of CM current. In the results, EMI antenna in the frequency band around the first resonance frequency was comprised of the ground plane and cable. In order to explain the frequency response of CM current, two EMI antenna models are proposed and demonstrated. EMI antenna is comprised of the ground plane and cable, and the other EMI antenna is comprised of the trace on the ground plane. It is suggested that the result is one of basic consideration for the ground plane with cable that have high EMI problem and resonance frequency of CM current.
Scientific journal, English

Common-Mode Current due to Trace and Slit in Ground Plane and Effect of Guard Band
M.Tanaka; Y. Kayano; J.L. Drewniak; H. Inoue
Proc. International Symposium on EMC, 221-224, Jun. 2004, Peer-reviwed
International conference proceedings, English

A Study on Common-Mode Current on Feed Cable Attached to PCB with Different Cross Sectional Structures
Y. Kayano; M. Tanaka; H. Inoue
Proc. International Symposium on EMC, 1-4, Jun. 2004, Peer-reviwed
International conference proceedings, English

Common-mode current due to a trace near a PCB edge and its suppression by a guard band
Y Kayano; M Tanaka; JL Drewniak; H Inoue
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 46, 1, 46-53, Feb. 2004, Peer-reviwed, The common-mode (CM) current due to a trace near a printed circuit board (PCB) edge, and its suppression by a guard band have been studied experimentally and with finite-difference time-domain (FDTD) modeling. As the guard band, copper tape is connected along the entire edge of the ground plane. First, a PCB electromagnetic interferenc (EMI) coupling path that results from the nonzero impedance of the PCB ground plane is discussed. As the trace is moved closer to the PCB edge, the CM current increases. Then, the effect of the guard band on the CM current is detailed. A guard band parallel to and near a trace is most effective in suppressing the CM current. The cross-sectional magnetic field distribution at center of the PCB with and without the guard band is also calculated with FDTD modeling. The guard band decreases the magnetic field distributed on the reverse side of a PCB. These results indicate the guard band is effective in suppressing CM current. Finally, an empirical formula to quantify the relationship between the position of a trace and CM current for the case with a guard band is proposed. Calculated results using the empirical formula and FDTD modeling are in good agreement, which indicates this empirical formula should be useful for developing EMI design guidelines.
Scientific journal, English

A study on the correspondence of common-mode current in electromagnetic radiation from a PCB with a guard-band
Y Kayano; M Tanaka; H Inoue; JL Drewniak
2004 INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, SYMPOSIUM RECORD 1-3, IEEE, 209-214, 2004, Peer-reviwed, A PCB, in which the ground plane has a finite width and the trace has unbalanced positioning, can result in common-mode (CM) radiation. So far, CM current which is generated by the unbalance of a trace and ground plane has been investigated by experiment and numerical method. It was clarified that CM current is well explained the radiation from PCB up to a few hundred megahertz, and addition of a guard band geometry, which is well connected to the ground plane, can be effective in suppressing the CM current. But it is seemed to be insufficient description for the phenomena observed at higher frequency. This study newly focuses on the correspondence of the CM current in total electromagnetic (EM) radiation from a PCB with a guard band up to 5 GHz. In results, although total radiated power and near electric field up to 1 GHz were related to CM current, the increase in EM radiation in higher frequencies (a few gigahertz) could not be predicted from only the frequency response of CM current There should suggest two radiation components for a PCB configuration; radiation as a result of a CM current due to the current driven mechanism, and direct radiation from a trace. At the higher frequencies, direct radiation from the trace may be more significant relative to the radiation due to the CM current. This research will be very useful and applicable to estimate the detail of EMC radiation problem from PCBs with attached cables.
International conference proceedings, English

A study on influence of guard band on common-mode current related to a microstrip line
Y Kayano; M Tanaka; JL Drewniak; H Inoue
2003 IEEE International Symposium on Electromagnetic Compatibility (EMC), Vols 1 and 2, Symposium Record, IEEE, 1114-1117, 2003, Peer-reviwed, Influence of guard band on common-mode (CM) current related to a microstrip line (trace) has been studied experimental and FDTD simulation. As the guard band, copper tape is connected along the entire edge of the ground plane. It is cleared that a guard band parallel to and near a trace is most effective in suppressing the CM current. An empirical formula to quantify the relationship between the position of a trace and CM cur-rent of the case with a guard band is proposed. Calculated results using the empirical formula and FDTD modeling are in good agreement, which indicates this empirical formula should be useful for developing EMI design guidelines.
International conference proceedings, English

Common-Mode Current due to a Trace on a PCB with a Guard-Band -Experiment and FDTD Modeling-
Y. Kayano; M. Tanaka; J.L. Drewniak; H. Inoue
Proc. International Conference on Electronics Packaging, 316-321, Apr. 2002, Peer-reviwed
International conference proceedings, English

FDTD Modeling of Common-Mode Current due to a Trace on a PCB with a Wire
M. Tanaka; Y. Kayano; J.L. Drewniak; H. Inoue
Proc. Asia-Pacific Radio Science Conference, 317, Aug. 2001
International conference proceedings, English

Electomagnetic Compatibility (EMC) Analysis and Evaluation of Printed Circuit Boards (PCBs) by EM Simulation
T. Harada; Y. Kayano
Apr. 2023, まぐね, 18, 2, 61-66, Japanese, Invited, Introduction scientific journal

プリント回路基板からの不要電磁放射の基礎と現状
Y. Kayano
DENKISHOIN, Oct. 2022, 電気計算, 310, 29-34, Japanese, Introduction commerce magazine

Evaluation Method of Voltage - Current Distribution and Electromagnetic Radiation from Asymmetrical and Equi-Length Differential-Paired Lines Expressed by Equivalent Source and Load Circuit
Y.Kayano
JIEP, Jul. 2022, Journal of Japan Institute of Electronics Packaging, 25, 4, 304-308, Japanese, Introduction scientific journal, False

選好度付きセットベース設計手法を用いた差動伝送線路並びに対策部品の多目的満足化設計
Y. Kayano
科学情報出版, Oct. 2021, EMC, 402, 45-59, Japanese, Introduction commerce magazine

Feasibility of Electromagnetic Shield with Low Reflectivity and Transmissivity
Y. Kayano
The Magnetics Society of Japan, Jun. 2021, Magnetics Japan, 16, 3, 149-152, Japanese, Invited, Introduction scientific journal

Electric Circuit Design by Applying Set-based Design Method
Y. Kayano; Y. Kami
Japan Society for Design Engineering, Dec. 2020, Journal of Japan Society for Design Engineering, 55, 12, 725-731, Japanese, Introduction scientific journal

電磁ノイズ問題での試行錯誤からの脱却を目指して
Y. Kayano
電波技術協会, 10 Mar. 2020, Future Of Radio Network, 333, 46-49, Japanese, Introduction other

プリント回路基板からの不要電磁放射の予測と抑制を目指したEMC計測と解析
Y. Kayano
科学情報出版, Oct. 2019, EMC, 378, 37-51, Japanese, Introduction commerce magazine

Imbalance Component and Electromagnetic Radiation from Asymmetrical and Equi-Length Differential-Paired Lines
Y.Kayano; H. Inoue
JIEP, Aug. 2018, Journal of Japan Institute of Electronics Packaging, 21, 5, 361-367, Japanese, Introduction scientific journal

Transmission Characteristics and Shielding Effectiveness of Shielded-Flexible Printed Circuits
Y. Kayano; H.Inoue
05 Feb. 2018, Function & Materials, 38, 2, 4-11, Japanese, Introduction commerce magazine

Electromagnetic radiation from asymmetrical differential-paired lines
Yoshiki Kayano
Japan Institute of Electronics Packaging, 2015, Journal of Japan Institute of Electronics Packaging, 18, 5, 353-357, Japanese, Introduction scientific journal, 1884-121X, 84947061713

Analysis of Imbalance Component and EM Radiation from Asymmetrical Equi-length Differential-Paired Lines
Y. Kayano; H. Inoue
科学技術出版, Feb. 2014, EMC, 26, 310, 128-137, Japanese, Introduction commerce magazine, 0916-2275, 40019971660, AN10073620

Current Issues and Future Visions of System Jisso-CAD/CAE
S. Tani; Y. Toyota; Y. Kayano; H. Inoue; C. Ueda; K. Hasegawa
JIEP, 2014, Journal of The Japan Institute of Electronics Packaging, 17, 1, 6-11, Japanese, Introduction scientific journal, 1343-9677, 130004861537, AA11231565

Large-Scale Electromagnetic Simulation using SX-8i
Y. Kayano; H. Inoue
Akita University, Sep. 2010, General Information Processing Center, Akita University, 13, 13, 3-13, Japanese, Report research institution, 120005430546

EMC Design of Enclosure for Information Device
Y. Kayano; H. Inoue
Apr. 2010, EMC, 261, 67-79, Japanese, Introduction commerce magazine

FDTD Analysis of Undesired Electromagnetic Radiation from PCB driven by Feed-Cable
Y. Kayano; H. Inoue
Tohoku University, 2008, SENAC, 41, 1, 31-44, Japanese, Report research institution

Electrical Theory
文部科学省
Contributor, 主に，第2章 電気と磁気の審査, 海文堂, Feb. 2023

Preference Set-based Design
H. Ishikawa; Y. Kayano; N. Sasaki; Y. Fukunaga
Scholarly book, Japanese, Contributor, Morikita, 16 Dec. 2019

EMC Handbook
Y. Kayano
Scholarly book, Japanese, Contributor, 10.3 Propagation and coupling of electromagnetic noise 19.5.8.1 Analysis of undesired EM radiation from PCB driven by feed-cable,, Mimatsu cooperation, Sep. 2009

A Study on Optimal Design of Band-Stop Type FSS using Topology Optimization
Seiya Muraki; Hayato Komatsu; Yoshiki Kayano
Oral presentation, Japanese, 2025 IEICE General Conference, IEICE, Tokyo City University, Domestic conference
28 Mar. 2025
24 Mar. 2025- 28 Mar. 2025

Multi-Objective Satisfactory Design of EMI Filter using Combination of Quality Engineering and Set-based Design with Desirability Function
Teruki Fujita; Yoshiki Kayano; Youichi Iiyama; Yuji Kado
Oral presentation, Japanese, EMD, IEICE, Miyashiro, Saitama, Japan, Domestic conference
28 Feb. 2025
28 Feb. 2025- 28 Feb. 2025

Study on Dependency of Crosstalk on Distance between Two Pairs of Differential-Paired Lines with Common Mode Choke Coil,
Hayato Komiya; Yoshiki Kayano; Yoshio Kami; Fengchao Xiao; Sayaka Sekiguchi; Hiroya Ueyama; Naoki Iida
Oral presentation, English, EMC Joint Workshop 2024, Bangkok, IECE, Bangkok, Thailand, Thailand
15 Nov. 2024
15 Nov. 2024- 15 Nov. 2024

Design of Bend Differential-Paired Lines With Both Enhancement of Signal Integrity and Suppression of Common-Mode Noise Using Topology Optimization,
Hayato Komatsu; Yoshiki Kayano; Fengchao Xiao
Oral presentation, English, EMC Joint Workshop 2024, Bangkok, IEICE, Bangkok, Thailand, Thailand
15 Nov. 2024
15 Nov. 2024- 15 Nov. 2024

Group Delay Optimal Design of Noncommensurate Transmission Line With Degree of Freedom in Gaps Between C-sections
Wakana Kashima; Yoshiki Kayano; Taiki Yamagiwa; Fengchao Xiao
Oral presentation, English, EMC Joint Workshop 2024, Bangkok, IEICE, Bangkok, Thailand, Thailand
15 Nov. 2024
15 Nov. 2024- 15 Nov. 2024

Multi-Objective Satisfactory Design of Stabilized Power Supply Circuit using Combination of Parameter Design and Set-based Design (Part 2) Narrowing using Desirability Function as Evaluation Index
Yoshiki KAYANO; Youichi IIYAMAI; Yuji KADO
Oral presentation, Japanese, EST, IEICE, Semboku, Akita, Japan, Domestic conference
18 Oct. 2024
17 Oct. 2024- 18 Oct. 2024

Design of Sub-6 GHz Filtering Antenna with Parasitic Strip and Parasitic Slots
Hitoshi Jige; Yasutaka Murakami; Yoshiki Kayano; Fengchao Xiao
Oral presentation, Japanese, 2024 IEICE Society Conference, IEICE, Nippon Institute of Technology, Japan, Domestic conference
10 Sep. 2024
10 Sep. 2024- 13 Sep. 2024

A Study on Group Delay of Noncommensurate Transmission Line All-Path Networks with Restricted Electromagnetic Coupling Region
Yoshiki Kayano; Wakana Kashima
Oral presentation, Japanese, EMD, IEICE, Aomori, Japan, Domestic conference
30 Aug. 2024
29 Aug. 2024- 30 Aug. 2024

Multi-Objective Satisfactory Design of Stabilized Power Supply Circuit using Combination of Parameter Design and Set-based Design
Yoshiki KAYANO; Youichi IIYAMAI; Yuji KADO
Oral presentation, Japanese, EMD, IEICE, Tokyo, Japan, Domestic conference
19 Jul. 2024
19 Jul. 2024- 19 Jul. 2024

Study on Frequency Response of Shielding Effectiveness for Near Magnetic-Field by Thin Conductive Shield
Taiki Yamagiwa; Yoshiki Kayano; Hiroshi Inoue
Oral presentation, Japanese, EMCJ, IEICE, Matsue, Japan, Domestic conference
15 Mar. 2024
15 Mar. 2024- 15 Mar. 2024

Multi-Objective Satisfactory Design of Differential Amplifier Based on Quality Engineering Approach
Junya Sakamoto; Yoshiki Kayano; Youichi Iiyama; Yuji Kado
Oral presentation, English, 2024 IEICE General Conference, IEICE, Hiroshima University, Japan, Domestic conference
07 Mar. 2024
04 Mar. 2024- 08 Mar. 2024

Improving radome transmission loss and sidelobe characteristics as the frequency increases using metamaterials
Takatoku Fujigami; Fengchao Xiao; Yoshiki Kayano
Oral presentation, Japanese, 2024 IEICE General Conference, IEICE, Hiroshima University, Japan, Domestic conference
05 Mar. 2024
04 Mar. 2024- 08 Mar. 2024

Dependence of Frequency Dispersion of Shielded-PCB on Electromagnetic Field Coupling
Taiki Yamagiwa; Yoshiki Kayano; Hiroshi Inoue; Yoshio Kami; Fengchao Xiao
Oral presentation, Japanese, 2024 IEICE General Conference, IEICE, Hiroshima University, Japan, Domestic conference
05 Mar. 2024
04 Mar. 2024- 08 Mar. 2024

Study on Initial Structure Dependence of Topology Optimization of Bend Differential-Paired Lines
Hayato Komatsu; Yoshiki Kayano; Taiki Yamagiwa; Yoshio Kami; Fengchao Xiao
Oral presentation, Japanese, 2024 IEICE General Conference, IEICE, Hiroshima University, Japan, Domestic conference
05 Mar. 2024
04 Mar. 2024- 08 Mar. 2024

Optimization of decoupling capacitor in power distribution networks using machine learning
Sora Mizukaki; Fengchao Xiao; Yoshiki Kayano
Oral presentation, Japanese, 2024 IEICE General Conference, IEICE, Hiroshima University, Japan, Domestic conference
05 Mar. 2024
04 Mar. 2024- 08 Mar. 2024

Effect of Common-Mode Choke Characteristics on Signal Integrity in BCI Test
Hiroya Ueyama; Naoki Iida; Yoshiki Kayano; Fengchao Xiao; Yoshio Kami
Oral presentation, Japanese, 2024 IEICE General Conference, IEICE, Hiroshima University, Japan, Domestic conference
05 Mar. 2024
04 Mar. 2024- 08 Mar. 2024

Study on Topology Optimization of FSS Loaded Waveguide Slot Antenna
S. Funaki; Y. Kayano; Y. Murakami; Y. Kami; F. Xiao; K. Ito
Oral presentation, Japanese, EST, IEICE, Yonezawa, Yamagata, Japan, Domestic conference
20 Oct. 2023
19 Oct. 2023- 20 Oct. 2023

Enhanced EMI Filter Design by a Combination of Preference Set-based and Polynomial Chaos Methods under Multiple Uncertain Parameters
Bui Duc Chinh; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, English, EST, IEICE, Yonezawa, Yamagata, Japan, Domestic conference
20 Oct. 2023
19 Oct. 2023- 20 Oct. 2023

A Study on Design of Bend Differential Transmission Line using Topology Optimization with NGnet
Hayato Komatsu; Yoshiki Kayano; Yoshio Kami; Fengchao Xiao
Oral presentation, Japanese, 2023 IEICE Society Conference, IEICE, Nagoya University, Japan, Domestic conference
15 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

Statistical Analysis of Twisted Pair Line using Polynomial Chaos Methods
Yuto Hachiga; Yoshiki Kayano; Yoshio Kami; Fengchao Xiao
Oral presentation, Japanese, 2023 IEICE Society Conference, IEICE, Nagoya University, Japan, Domestic conference
15 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

Multi-Objective Design of EMI Filter with Multiple Uncertain Parameters by Preference Set- based Design Method and Polynomial Chaos Method
Duc Chinh Bui; Yoshiki Kayano; Fengchao Xiao; Yoshio Kami
Oral presentation, English, 2023 IEICE Society Conference, IEICE, Nagoya University, Japan, Domestic conference
15 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

Effect of Common-Mode Choke Characteristics on Induced Voltage in BCI Test
Hiroya Ueyama; Naoki Iida; Yoshiki Kayano; Fengchao Xiao; Yoshio Kami
Oral presentation, Japanese, 2023 IEICE Society Conference, IEICE, Nagoya University, Japan, Domestic conference
15 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

Design of Transmission Line Type Filter by Preference Set-based Design Method
Yoshiki Kayano
Invited oral presentation, Japanese, 2023 IEICE Society Conference, Invited, IEICE, Nagoya University, Japan, Domestic conference
14 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

Analysis of The Transfer Impedance of Braided-Wire Shielded Cables
Yusuke Kikuta; Fengchao Xiao; Yoshiki Kayano; Yoshio Kami
Oral presentation, Japanese, 2023 IEICE Society Conference, IEICE, Nagoya University, Japan, Domestic conference
14 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

A Study on Optimal Design of Group Delay of Noncommensurate Transmission Line All-path Networks with a Degree of Freedom in Line Gap
Wakana Kashima; Taiki Yamagiwa; Yoshiki Kayano; Yoshio Kami; Fengchao Xiao
Oral presentation, Japanese, 2023 IEICE Society Conference, IEICE, Nagoya University, Japan, Domestic conference
13 Sep. 2023
12 Sep. 2023- 15 Sep. 2023

薄い導体シールドを実装したFPCの線路定数の周波数分散特性
T. Yamagiwa; Y. Kayano; Y. Kami; F. Xiao; H. Inoue
Oral presentation, Japanese, エレクトロニクス実装学会システム設計研究会2023年度第1回公開研究会
04 Jul. 2023
04 Jul. 2023- 04 Jul. 2023

Robust Design by Preference Set-based Design - (Part 4) Application to Tolerance Design of Stabilized Power Supply Circuit -
Y. Kayano
Oral presentation, Japanese, EMD
30 Jun. 2023
30 Jun. 2023- 30 Jun. 2023

設計フォーラム【セットベース設計手法による新しいものづくり】選好度付きセットベース手法を用いた 電気回路設計
Y. Kayano
Nominated symposium, JSDE 2023 Spring Annual Conference, Invited
27 May 2023
27 May 2023- 27 May 2023

Evaluation and Improvement of Near-Field Scan Using Particle Swarm Optimization
N. Goto, F. Xiao, Y. Kayano and Y. Kami
Oral presentation, Japanese, 2023 IEICE General Conf., Shibaura Institute of Technology
08 Mar. 2023
07 Mar. 2023- 10 Mar. 2023

A Study on EBG Absorber for Imaging Electromagnetic Field Distribution using Multi-probe Type
K. Sakemi, Y. Kayano, Y. Kami and F. Xiao
Oral presentation, Japanese, EMD, Nippon Institute of Technology
03 Mar. 2023
03 Mar. 2023- 03 Mar. 2023

Statistical Analysis of Multiconductor Non-Uniform Transmission Line with Variations in Line Height and Line Gap Using Polynomial Chaos Methods
Y. Hachiga, Y. Kayano, Y. Kami and F. Xiao
Oral presentation, Japanese, EST研究会, Ishigaki
26 Jan. 2023
26 Jan. 2023

選好度付きセットベース手法を用いた差動伝送線路の多目的満足化設計
Y. Kayano
Public discourse, Japanese, 日本設計工学会 第3回セットベース設計手法に関する調査研究分科会, 日本設計工学会 セットベース設計手法に関する調査研究分科会, 慶應義塾大学三田キャンパス, Domestic conference
16 Jan. 2023
16 Jan. 2023

Multi-Objective Design of EMI Filter by Preference Set-based Design Method and Polynomial Chaos Method
Bui DUc Chinh; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, English, 2022 IEICE Society Conf., online, Domestic conference
08 Sep. 2022

Statistical Analysis of Multiconductor Non-Uniform Transmission Line using Polynomial Chaos Methods
Y. Hachiga; Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, 2022 IEICE Society Conf., online, Domestic conference
08 Sep. 2022

Robust Design by Preference Set-based Design - (Part 3) Application to Multi-Objective Satisfactory Design of Stabilized Power Supply Circuit -
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EMD, Chiba, Domestic conference
25 Aug. 2022

Statistical Analysis of Transmission Characteristics of Transmission Line using Stochastic Galerkin Method
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
15 Jul. 2022

A Study on Design of FSS based Radio Wave Absorber using Topology Optimization with NGnet
Y. Sato; Y. Kayano; Y. Kami; F. Xiao; K. Itho
Oral presentation, Japanese, EST研究会, online, Domestic conference
19 May 2022

WPT based on Magnetically Coupled Resonators by Using Electron-ring Shaped Coil as Relay Coil
H. Kato; F. Xiao; Y. Kayano; Y. Kami
Oral presentation, Japanese, 2022 IEICE General Conf., online, Domestic conference
17 Mar. 2022

Bandwidth Enhancement of Negative Group Delay Characteristic by Multistage Distribution Parallel Lines
T. Yamaguchi; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, Japanese, 2022 IEICE General Conf., online, Domestic conference
16 Mar. 2022

A study on topology optimization of radio wave absorber using FSS
Y. Sato; Y. Kayano; Y. Kami; F. Xiao; K. Itoh
Oral presentation, Japanese, 2022 IEICE General Conf., online, Domestic conference
16 Mar. 2022

A Study on Primary Parameters of Shielded-FPC with Frequency Dispersion
T. Yamagiwa; Y. Kayano; Y. Kami; F. Xiao; H. Inoue
Oral presentation, Japanese, 2022 IEICE General Conf., online, Domestic conference
15 Mar. 2022

Basic Study on Design of Differential-Paired Lines Using Neural Network
R. Kitahara; Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EST研究会, online, Domestic conference
08 Oct. 2021

Application of Low-Cost Patch Array Antenna to Millimeter Wave Band
K. Honguu; F. Xiao; Y. Kayano; Y. Kami
Oral presentation, Japanese, 2021 IEICE Society Conf., online, Domestic conference
15 Sep. 2021

Robust Design by Preference Set-based Design –Application to Circuit Design (Part 2)–
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EMD, On-line, Domestic conference
27 Aug. 2021

Optimal Design of Stabilized Power Supply Circuit by Preference Set-based Design Method and Evaluation of Robustness of the Design Solution
K. Koike; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, Japanese, 2021 IEICE General Conf., online, Domestic conference
10 Mar. 2021

Signal Integrity and Electromagnetic Radiation from Differential-Paired Lines and Its Suppression Techniques
Y. Kayano
Invited oral presentation, Japanese, 2021 IEICE General Conf., Invited, online, Domestic conference
09 Mar. 2021

Transmission Characteristics and EM Radiation from Differential Paired-Lines
Y. Kayano
Public discourse, Japanese, 105th EMC Ishikawa, Industrial Research Institute of Ishikawa, オンライン, Domestic conference
19 Jan. 2021

Analysis of Differential Paired-Lines and Its Multi-Objective Design using Preference Set-based Design Method
Y. Kayano
Public discourse, Japanese, 48th IEEE EPS Japan Chapter Evening Meeting, IEEE EPS(Electronics Packaging Society) Japan Chapter, オンライン, Domestic conference
27 Nov. 2020

PSD手法を用いた差動伝送線路並びにEMIフィルタの多目的満足化設計
Y. Kayano
Public discourse, Japanese, 電気通信大学 産学官連携センター ギガビット研究会 第18回シンポジウム, 電気通信大学 産学官連携センター ギガビット研究会, オンライン, Domestic conference
05 Oct. 2020

Equivalent Circuit for Estimating Induced Current on Twisted-Wire Pair Above Ground
N. Inagaki; F. Xiao; Y. Kami; Y. Kayano
Oral presentation, Japanese, 2020 IEICE Society Conf., online, Domestic conference
16 Sep. 2020

EMI Filter with Attenuation Pole for Differential Signaling and Its Design by PSD
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, 2020 IEICE Society Conf., online, Domestic conference
16 Sep. 2020

Robust Design by Preference Set-based Design –Application to Circuit Design–
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EMD, Chitose & on-line, Domestic conference
17 Jul. 2020

Robust Design of Cantilever for Electrical Contact by Preference Set-based Design
Y. Kayano; K. Miyanaga; H. Inoue
Oral presentation, Japanese, EMD, online meeting, Domestic conference
03 Jul. 2020

Experimental Extraction Method of Primary and Secondary Parameters of Transmission Line
T. Yamagiwa; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, Japanese, 2020 IEICE General\ Conf., Hiroshima, Domestic conference
18 Mar. 2020

Equivalent Source Representation of Multi-Port Networks including Voltage and Current Sources
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, 2020 IEICE General Conf., Hiroshima, Domestic conference
18 Mar. 2020

Design of Hybrid EMI Filter in AM Broadcasting Frequency Band
Y. Itagaki; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, Japanese, 2020 IEICE General\ Conf., Hiroshima, Domestic conference
17 Mar. 2020

EMI Filter for Power Supply with Poles Utilizing Parasitic Elements
Y. Itagaki; F. Xiao; Y. Kami; Y. Kayano
Oral presentation, Japanese, 2020 IEICE General Conf., Hiroshima, Domestic conference
17 Mar. 2020

A Study on Design of Filter by Preference Set-based Design – Evaluation of Robustness –
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
14 Feb. 2020

A Study of Decoupling Capacitor Implementation for Voltage Fluctuation Suppression by PSD Method Using RBF Interpolation for Meta-modeling
M. Kawakami; Y. Kayano; F. Xiao; Y. Kami; T. Tobana; K. Akimoto; Y. Isota
Oral presentation, Japanese, High-speed high frequency electronics packaging, Osaka, Domestic conference
22 Nov. 2019

Statistical Analysis of Transmission Characteristics of Differential-Paired Lines using Polynomial Chaos Methods
K. Kawamura; Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, EST研究会, Tagajo, Domestic conference
25 Oct. 2019

メタモデルにRBF補間を用いたPSDによるデカップリングキャパシタ実装の一検討
川上 雅士; 萓野 良樹; 肖 鳳超; 戸花 照雄; 上 芳夫; 秋元 浩平; 礒田 陽次
Japanese, EMCJ研究会, 電子情報通信学会, http://id.ndl.go.jp/bib/030074535
24 Oct. 2019
24 Oct. 2019- 24 Oct. 2019

Reconstruction of Electromagnetic Field based on Sequential Sampling
N. Hanaoka; Y. Kami; F. XIao; Y. Kayano
Oral presentation, Japanese, 2019 IEICE Society Conf., Osaka, Domestic conference
13 Sep. 2019

Approximate Expression of Secondary Parameters for Transmission Line with Periodic Structure
K. Matsuishi; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, Japanese, 2019 IEICE Society Conf., Osaka, Domestic conference
13 Sep. 2019

Analysis of Transmission Line Between Power/Ground Planes
G. Masuda; Y. Kami; F. Xiao; Y. Kayano
Oral presentation, Japanese, 2019 IEICE Society Conf., Osaka, Domestic conference
13 Sep. 2019

Evaluation Method of Voltage and Current Distributions on Asymmetrical Differential-Paired Lines
Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, 2019 IEICE Society Conf., Osaka, Domestic conference
13 Sep. 2019

A Study of Decoupling Capacitor Implementation for Voltage Fluctuation Suppression by PSD Method Using RBF Interpolation for Meta-modeling
M. Kawakami; Y. Kayano; F. Xiao; Y. Kami; T. Tobana; K. Akimoto; Y. Isota
Oral presentation, Japanese, 2019 IEICE Society Conf., Osaka, Domestic conference
13 Sep. 2019

Optimized Design of EMI Filter for Power Supply based on Mathmatical Method
Y. Itagaki; Y. Kayano; F. Xiao; Y. Kami
Oral presentation, Japanese, 2019 IEICE Society Conf., Osaka, Domestic conference
13 Sep. 2019

A Study on Design of Transmission Line for Negative Group Delay by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
14 Jun. 2019

シールドを実装した伝送線路のSI/EMI解析
Y. Kayano
Public discourse, Japanese, 電気学会 高周波磁性材料の実用化のための技術動向調査専門委員会, 電気学会 高周波磁性材料の実用化のための技術動向調査専門委員会, Domestic conference
22 May 2019

Multi-Objective Design of Cantilever for Electrical Contacts by Preference Set-based Design
Y. Kayano; K.Miyanaga; H. Inoue; Y. Kami
Oral presentation, Japanese, EMD, Sendai, Domestic conference
17 May 2019

Simulation of ESD Coupling into Cable Harness
J. Hou; Y. Kayano; Y. Kami; F.Xiao
Oral presentation, Japanese, 2019 IEICE General Conf., Tokyo, Domestic conference
19 Mar. 2019

Equivalent Circuit of Electrostatic Discharge from Wearable Device
G. Zhang; Y. Kayano; Y. Kami; F.Xiao
Oral presentation, Japanese, 2019 IEICE General Conf., Tokyo, Domestic conference
19 Mar. 2019

Study on FDTD Analysis Method of Differential Lines Including Dielectric Loss at GHz Band
T. Yamagiwa; M. Tomioka; R. Kitahara; A. Nakamura; Y. Kayano; T. Kasuga
Oral presentation, Japanese, EMD, Chofu, Domestic conference
01 Mar. 2019

プリント回路基板からの不要電磁放射の予測と抑制を目指した EMC計測と解析
Y. Kayano
Public discourse, Japanese, 第24回 EMC環境フォーラム, Domestic conference
26 Oct. 2018

A Study on Multi-Objective Design of EMI Filter for Differential Signaling by Preference Set-based Design Method
Y. Kayano; M. Kawakami; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EST研究会, Hachinohe, Domestic conference
19 Oct. 2018

A Study on Multi-Objective Design of EMI Filter for Differential Paired-Lines by Preference Set-based Design Method
萓野 良樹; 川上 雅士; 上 芳夫; 石川 晴雄; 肖 鳳超; 井上 浩
Japanese, EST研究会, 電子情報通信学会, Peer-reviewed, http://id.ndl.go.jp/bib/029325522
18 Oct. 2018
18 Oct. 2018- 18 Oct. 2018

Transmission Characteristics for Transmission Line Between Defected Power/Ground Planes
S. Sasaki; Y. Kami; F. Xiao; Y. Kayano
Oral presentation, Japanese, 2018 IEICE Society Conf., Kanazawa, Domestic conference
13 Sep. 2018

A Study on Transmission Characteristics of Transmission Line with Periodic Structure
K. Matsuishi; Y. Kayano; F.Xiao; Y. Kami
Oral presentation, Japanese, 2018 IEICE Society Conf., Kanazawa, Domestic conference
13 Sep. 2018

A Study on Multi-Objective Design of EMI Filter for Differential Signaling by Preference Set-based Design Method
Y. Kayano; M. Kawakami; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, 2018 IEICE Society Conf., Kanazawa, Domestic conference
12 Sep. 2018

選好度付セットベース設計手法を用いた伝送線路の多目的最適化設計
Y. Kayano
Public discourse, Japanese, エレクトロニクス実装学会2018サマーセミナー, Domestic conference
04 Sep. 2018

A Study on Multi-Objective Design of EMI Filter by Preference Set-based Design Method
Y. Kayano; M. Kawakami; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
26 Jul. 2018

A Study on Design Methodology of Transmission Line Type Filter by Preference Set-based Design Method (Part 3) Comparison with Design based on Filter Theory
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
15 Jun. 2018

差動伝送線路のSI/EMI解析
Y. Kayano
Public discourse, Japanese, 日本能率協会第32回 EMC設計・対策技術シンポジウム, Domestic conference
20 Apr. 2018

Determination of Decoupling Capacitor Parameters for Power-GND Plane by Using PSD Method
M. Kawakami; Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao
Oral presentation, Japanese, 2018 IEICE General Conf., Tokyo, Domestic conference
23 Mar. 2018

A Study on Multi-Objective Design of Meander Delay Line for Equi-Length Routing by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, 2018 IEICE General Conf., Tokyo, Domestic conference
23 Mar. 2018

A Study on Design Methodology of Transmission Line Type Filter by Preference Set-based Design Method (Part 2) Design of Experiments for Metamodeling
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
16 Mar. 2018

A Study on Suppression of Magnetic Near-Field above a Trace by Shielding Material with SRR Structure
R. Sato; Y. Kayano; M. Tanaka
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Nov. 2017

On Technique of Preference Set-based Design
Y. Kami; Y. Kayano; H. Ishikawa; F. Xiao
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Nov. 2017

A Study on Design Methodology of Transmission Line Type Filter by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Nov. 2017

A Study on Design of Transmission Line with SIR Type Stub for Negative Group Delay by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, 2017 IEICE Society Conf., Tokyo, Domestic conference
12 Sep. 2017

A Study on Design of SIR Type Transmission Line for Negative Group Delay by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
21 Jul. 2017

A Study on Design of Bent Differential-Paired Lines by Preference Set-based Design Method
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, English, EMCJ Joint Workshop, Singapore, International conference
19 May 2017

Application of the Preference Set-based Design Method to Bent Differential-Paired lines
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
10 Mar. 2017

Investigation on Characteristic Impedance of Differential Transmission Line in Meshed-ground Flexible Printed Circuit
Y. Zhu; F. Xiao; X. Sun; Y. Kayano; Y. Kami
Oral presentation, English, EMCJ, Tokyo, Domestic conference
10 Mar. 2017

Characteristics of Loaded TEM Cell
M. Yoshino; Y. Kayano; Y. Kami; F. Xiao
Oral presentation, Japanese, 2017 IEICE General Conf., Nagoya, Domestic conference
Mar. 2017

Design of Transmission Line in Meshed-ground Flexible Printed Circuit
Y. Zhu; F. Xiao; X. Sun; Y. Kayano; Y. Kami
Oral presentation, English, 2017 IEICE General Conf., Nagoya, Domestic conference
Mar. 2017

A Study on Application of the Preference Set-based Design Method to Negative Group Delay Circuit
Y. Kayano; Y. Kami; H. Ishikawa; F. Xiao; H. Inoue
Oral presentation, Japanese, 2017 IEICE General Conf., Nagoya, Domestic conference
Mar. 2017

A Study on Embedded Multi-Layer F-SIR Structure for Wideband Negative Group Delay Characteristics
R. Sasaki; Y. Kayano; M. Tanaka
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
25 Nov. 2016

Feasibility of Electromagnetic Shield with Low Reflectivity and Transmissivity by Approximation of Perfectly Matched Layer
R. Sato; Y. Kayano; M. Tanaka
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
25 Nov. 2016

Equivalent Circuit Analysis of Transmission Line with F-SIR Type Open-Stub Resonator for Negative Group Delay and Slope Characteristics
Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2016, Awaji, International conference
Nov. 2016

Dependency of Transmission Characteristic of Shielded-Flexible Printed Circuits for Differential-Signaling on Thickness of Conductive Shield
Y. Kayano; H. Inoue
Oral presentation, Japanese, EST, Sendai, Domestic conference
Oct. 2016

A Study on Transmission Line Charactersitics of Shielded-Flexible Printed Circuits
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2016 IEICE Society Conf., Hokkaido, Domestic conference
Sep. 2016

Measurement of Near Magnetic Field Noise in Simplified Myoelectric Prosthetic Hand System
S. Koyanagi; Y. Kayano; M. Tanaka
Oral presentation, Japanese, SICE Tohoku Chapter 303rd workshop, Yurihonjo, Domestic conference
Jul. 2016

A Study on Multi-Layer F-SIR Type Transmission Line for Negative Group Delay and Slope Characteristics (Part 2)
Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
Jul. 2016

Identifying Dominant Factor of EMI of Asymmetrical Differential-Paired Lines with Different Termination Condition
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ Joint Workshop, Taipei, International conference
Jun. 2016

A Study on Dominant Factor of EMI of Asymmetrical Differential-Paired Lines with Different Termination Condition
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2016 IEICE General Conf., Fukuoka, Domestic conference
Mar. 2016

A Study on Transmission Loss of Shielded-Flexible Printed Circuits for Differential-Signaling
Y. Kayano; H. Inoue
Oral presentation, Japanese, EST, Sendai, Domestic conference
Oct. 2015

A Study on Transmission Characteristics and Shielding Effectiveness of Shielded Differential-Paired Lines
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2015 IEICE Society Conf., Sendai, Domestic conference
Sep. 2015

A Study on Multi-Layer F-SIR Structure for Wideband Negative Group Delay and Slope Characteristics
R. Sasaki; Y. Kayano
Oral presentation, Japanese, 2015 IEICE Society Conf., Sendai, Domestic conference
Sep. 2015

Case-Study of Research Approach by Young Engineer 2
Y. Kayano
Invited oral presentation, Japanese, 2015 IEICE Society Conf., Invited, Sendai, Domestic conference
Sep. 2015

A Study on Imbalance Component and EM Radiation from Bent Equi-Length Differential-Paired Lines
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ Joint Workshop, Bangkok, International conference
Jun. 2015

A Study on Multi-Layer F-SIR Type Transmission Line for Negative Group Delay and Slope Characteristics
Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Akita, Domestic conference
May 2015

Transmission Characteristics and Shielding Effectiveness of Shielded-Flexible Flat Cable for Differential-Signaling (Part 2)
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2015 IEICE General Conf., Shiga, Domestic conference
Mar. 2015

A Study on Arc Waveform for Slowly Breaking Asymmetrical Different Shape Silver-Tin Dioxide Contacts with External DC Magnetic Field
Y. Kayano; H. Inoue
Oral presentation, Japanese, SICE, Sendai, Domestic conference
Dec. 2014

A Study on Mode-Conversion Characteristic of Bent Differential-Paired Lines with Different EM Coupling
Y. Kayano; H. Inoue
Oral presentation, Japanese, EST, Yurihonjo, Domestic conference
Oct. 2014

A Study on Shielding Effectiveness on Shielded-Flexible Flat Cable for Differential-Signaling
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2014 IEICE Society Conf., Tokusima, Domestic conference
Sep. 2014

Transmission Characteristics and Shielding Effectiveness of Shielded-Flexible Flat Cable for Differential-Signaling
Y. Kayano; H. Inoue
Oral presentation, Japanese, EST, Kitami, Domestic conference
Sep. 2014

銀系接点低速開離時のアーク放電現象とGHz帯までの電磁ノイズ計測
Y. Kayano; H. Inoue
Public discourse, Japanese, 第165回継電器・コンタクトテクノロジ研究会, 継電器・コンタクトテクノロジ研究会, Domestic conference
25 Jul. 2014

A Study on Arc Blowing for Different Surface and Shape Silver-based Contacts using External DC Magnetic Field
Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
Jul. 2014

Frequency Response of Imbalance Component and EM Radiation from Bended Differential-Paired Lines with Different Coupled Cross-Section
Y. Kayano; M. Ohkoshi; H. Inoue
Oral presentation, English, 2014 IEICE General Conf., Niigata, Domestic conference
Mar. 2014

EM Radiation from Asymmetrical Differential-Paired Lines with Serpentine Equi-Length Routing
Y. Kayano; H. Inoue
Invited oral presentation, Japanese, The 28th Annual conference, Invited, Tokyo, Domestic conference
Mar. 2014

A Study on Embedded F-SIR Type Transmission Line in IC Chip for Negative Group Delay Characteristics
X. Yang; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2013, Wuhan, International conference
Nov. 2013

Arc Blowing for Slowly Breaking Different Shape Silver-Tin Dioxide Contacts by Arc Guide with External DC Magnetic Field
Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2013, Wuhan, International conference
Nov. 2013

A Study on Impact of Conductive-Shield Material on Differential-Paired Lines
Kayano; T. Watabe; H. Inoue
Oral presentation, Japanese, EST, Sendai, Domestic conference
Oct. 2013

A Study on Undesired Electromagnetic Radiation around a Printed Circuit Board
Y. Kayano; H. Inoue
Invited oral presentation, Japanese, 2013 IEICE Society Conf., Invited, Fukuoka, Domestic conference
Sep. 2013

A Study on Shielding EMI Effectiveness on Differential-Paired Lines
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2013 IEICE Society Conf., Fukuoka, Domestic conference
Sep. 2013

Study on Embedded F-SIR Type Transmission Line for Negative Group Delay Characteristics
X. Yang; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Jul. 2013

A Study on Improvement of Transmission Loss at Negative Group Delay using Embedded F-SIR Structure
X. Yang; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2013 IEICE General Conf., Gifu, Domestic conference
Mar. 2013

Frequency Response of Imbalance Component of Differential-Paired Lines with Serpentine Equi-Distance Routing
Y. Kayano; H. Inoue
Oral presentation, English, 2013 IEICE General Conf., Gifu, Domestic conference
Mar. 2013

A Study on Arc Blowing for Slowly Breaking Different Shape Silver-Tin Dioxide Contacts with External DC Magnetic Field
Y. Kayano; Y. Numakura; H. Inoue
Oral presentation, Japanese, 2013 IEICE General Conf., Gifu, Domestic conference
Mar. 2013

A Study on Arc Waveform at Slowly Separating Silver-Tin Dioxide Contacts with Holder Temperature Change
Y. Kayano; T. Tanaka; K. Miyanaga; H. Inoue
Oral presentation, English, IS-EMD2012, Chiba, International conference
Dec. 2012

A Study on Imbalance Component and EM Radiation from Asymmetrical Differential-Paired Lines with U-Shape Bend Routing
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ, Tagajo, Domestic conference
Oct. 2012

A Study on Imbalance Component and EM Radiation from Asymmetrical Differential-Paired Lines with Different Equi-Distance Routing
Y. Kayano; H. Inoue
Oral presentation, Japanese, 2012 Annual Conference of Fundamentals and Materials Society IEE Japan, Akita, Domestic conference
Sep. 2012

Frequency Response of Imbalance Component of Asymmetrical Differential-Paired Lines with Equi-Distance Routing
Y. Kayano; H. Inoue
Oral presentation, English, 2012 IEICE Society Conf., Toyama, Domestic conference
Sep. 2012

Negative Group Delay and Slope Characteristics of F-SIR Structure by Short-Via in an Output Line
X. Yang; Y. Kayano; H. Inoue
Oral presentation, English, 2012 Tohoku-Section Joint Convention of IEIE, Yurihonjo, Domestic conference
Aug. 2012

An Observation of Arc Column with External Magnetic Field at Slowly Breaking
K. Miyanaga; Y. Kayano; T. Kawashima; H. Inoue
Oral presentation, Japanese, 2012 IEICE General Conf., Okayama, Domestic conference
Mar. 2012

A Study on Imbalance Component and EM Radiation from Asymmetrical Differential-Paired Lines with Equi-Distance Routing
Y. Kayano; Y. Tsuda; H. Inoue
Oral presentation, English, 2012 IEICE General Conf., Okayama, Domestic conference
Mar. 2012

Effect of Holder Temperature on Bridge and Arc at Slowly Breaking Contact
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Mar. 2012

A Study on Phase Comparator Sensitivity for Low Phase-Noise PLL
H. Hobara; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Mar. 2012

Development of Low-Pass-Filter with Voltage Variable Cutoff Frequency
G. Kobayashi; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Tokyo, Domestic conference
Mar. 2012

A Study on Multi-Stage F-SIR Structure for Wideband Negative Group Characteristics
X. Yang; Y. Kayano; H. Inoue
Oral presentation, Japanese, IEEE EMC Society Sendai Chapter, Sendai, Domestic conference
Dec. 2011

Voltage Fluctuation of Arc Discharge affected by Pressure in Relay Housing
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2011, Akita, International conference
Nov. 2011

Arc Discharge affected by Pressure in Relay Housing
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2011, Akita, International conference
Nov. 2011

Identifying Frequency Response of EM Radiation from an Asymmetrical Differential-Paired Line based on Physics-Based Equivalent Circuit Model
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ, Hachinohe, Domestic conference
Oct. 2011

A Study on Asymmetrical Material of Ag and Pd Contact Pairs at Low Speed Breaking Arc Discharge
K. Miyanaga; Y. Kayano; H. Inoue; T. Takagi
Oral presentation, Japanese, 2011 IEICE Society Conf., Sapporo, Domestic conference
Sep. 2011

A Study on Imbalance Component and EM Radiation from an Asymmetrical Differential-Paired Line driven by LVDS (Part II)
Y. Kayano; H. Inoue
Oral presentation, English, 2011 IEICE Society Conf., Sapporo, Domestic conference
Sep. 2011

A Study on Low-Pass-Filter with Voltage Variable Cutoff Frequency
G. Kobayashi; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2006 Tohoku-Section Joint Convention of IEIE, Sendai, Domestic conference
Aug. 2011

A Study on Arc Waveform and Duration of Different Material Contact Pairs (Ag and AgSnO2) at Low Speed Breaking
K. Miyanaga; Y. Kayano; H. Inoue; T. Takagi
Oral presentation, Japanese, 2006 Tohoku-Section Joint Convention of IEIE, Sendai, Domestic conference
Aug. 2011

A Characteristic on Phase-Noise of Phase-Locked Loop for High Frequency and Broadband Use
H. Hobara; Y. Kayano; H. Inoue
Oral presentation, Japanese, SICE Tohoku Chapter 266th workshop, Akita, Domestic conference
Jul. 2011

A Study on Arc Duration of Different Material Contact Pairs at Low Speed Breaking
K. Miyanaga; Y. Kayano; H. Inoue; T. Takagi
Oral presentation, Japanese, 2011 IEICE General Conf., Domestic conference
Mar. 2011

Fundamental study on the effect of connector contact condition on transmission characteristic
Y. Hayashi; Y. Kayano; T. Mizuki; H. Sone; H. Inoue
Oral presentation, Japanese, 2011 IEICE General Conf., Domestic conference
Mar. 2011

A Study on Imbalance Component and EM Radiation from an Asymmetrical Differential-Paired Line driven by LVDS
Y. Kayano; K. Mimura; H. Inoue
Oral presentation, English, 2011 IEICE General Conf., Domestic conference
Mar. 2011

A Study on Negative Group Delay Characteristics of F-SIR Structure Driven by Differential-Mode
R. Yanagisawa; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Tokyo, Domestic conference
Mar. 2011

A Study on Lifetime and Reliability of Asymmetric Electrical Contact Pair
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Dec. 2010

A Measurement of Waveform at Slowly Separating Silver-Based Contacts with Heated Holder
S. Ozawa; K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2010, Xian, China, International conference
Oct. 2010

A Study on Generation and Break of Bridge at Different Material Contact Pairs
K. Miyanaga; Y. Kayano; H. Inoue; T. Takagi
Oral presentation, English, IS-EMD2010, Xian, China, International conference
Oct. 2010

An Equivalent Circuit Model for Predicting EM Radiation from Stripline Structure with a Thin Wire
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ, Domestic conference
Oct. 2010

ブリッジ切断に対して電極とホルダの熱伝導が与える影響に関する検討
K.Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, Workshop, Domestic conference
Oct. 2010

A Study on EM Radiation from Stripline Structure with a Thin Wire
Y. Kayano; H. Inoue
Oral presentation, English, 2010 IEICE Society Conf., Domestic conference
Sep. 2010

A Study on Relationship between Bridge Length at Bridge Break and Opening Velocity
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, 2010 IEICE Society Conf., Domestic conference
Sep. 2010

A Study on Short-Time Arc at Slowly Breaking Silver-Compound Contacts
Y. Kayano; K.Miyanaga; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
May 2010

A study on the contribution of heat conduction to bridge at slowly breaking contacts
K.Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
May 2010

A study on VCO with ring oscillator for wideband application
G. Kobayashi; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
May 2010

EMC Design of Enclosure for Information Device
Y. Kayano; H. Inoue
Japanese, EMC
Apr. 2010
Apr. 2010 Apr. 2010

Undesired Electromagnetic Radiation from a Printed Circuit Board driven by a Connected Feed Cable
Y. Kayano; H. Inoue
Invited oral presentation, Japanese, 2010 IEICE General Conf., Domestic conference
Mar. 2010

A Study on EM Radiation from Stripline Structure with Gapped Plane
Y. Kayano; T. Takayama; H. Inoue
Oral presentation, English, 2010 IEICE General Conf., Domestic conference
Mar. 2010

A Study on Influences of Heat Conductivity of Electrode and Holder on Bridge at Slowly Break
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, 2010 IEICE General Conf., Domestic conference
Mar. 2010

Radiated Emission from Stripline Structure with Periodical Slots in Power Plane
T. Takayama; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Mar. 2010

プリント基板からの不要電磁放射の防止の最新動向
Y. Kayano
Public discourse, Japanese, 電子情報通信学会東北支部先端技術シンポジウム 「無線通信技術の最新動向」, 電子情報通信学会東北支部, Domestic conference
27 Nov. 2009

Current Fluctuation Measurement for Breaking Contact at Transient Period from Bridge to Arc
S. Hanawa; K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2009, Tokyo, Japan, International conference
Nov. 2009

A Study on Length and Diameter of Bridge Related with Holder Heat Capacity
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, English, IS-EMD2009, Tokyo, Japan, International conference
Nov. 2009

F-SIR Structure Transmission Line Buried in IC Chip (Part 2)
R. Yanagisawa; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2009

Physics-Based Equivalent Circuit Model for Predicting EM Radiation from Stripline Structure with One Gapped Reference Plane (Part 2)
Y. Kayano; G. Feng; J. Fan; H. Inoue
Oral presentation, English, EMCJ, Domestic conference
Oct. 2009

プリント回路基板からの不要電磁放射抑制を目指したEMC計測と解析
H. Inoue; Y. Kayano
Public discourse, Japanese, 独立行政法人情報通信研究機構第6回先端電磁波計測研究会, 情報通信研究機構, Domestic conference
11 Sep. 2009

Fundamental Study on High-Frequency Equivalent Circuit of Connector Contact Failure
Y. Hayashi; Y. Kayano; T. Mizuki; H. Sone; H. Inoue
Oral presentation, Japanese, 2009 IEICE Society Conf., Domestic conference
Sep. 2009

A Study on Relathionship between Pd Content Rate and Bridge at Slowly Breaking AgPd Contacts
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, 2009 IEICE Society Conf., Domestic conference
Sep. 2009

Physics-Based Equivalent Circuit Model for Predicting EM Radiation from Stripline Structure with One Gapped Reference Plane
Y. Kayano; G. Feng; J. Fan; H. Inoue
Oral presentation, English, 2009 IEICE Soceity, Domestic conference
Sep. 2009

銀パラジウム合金接点開離時のブリッジとアークと熱の関係に関する検討
K.Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, SICE Tohoku Chapter, Domestic conference
Sep. 2009

電気接点低速開離時のブリッジとアークの測定
S. Hanawa; K.Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, SICE Tohoku Chapter 251, Domestic conference
Jul. 2009

A study on characteristics extraction of contact voltage waveform at slowly breaking silver contact
S. Hanawa; Y. Kayano; K.Miyanaga; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
May 2009

F-SIR Structure Transmission Line Buried in IC Chip
R. Yanagisawa; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Mar. 2009

A Study on Effect of Breaking Velocity on Bridge Generation at Aluminum Contact
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, 2009 IEICE General Conf., Domestic conference
Mar. 2009

EMC Problems of Transmission Lines with Connector Contact Failure
Y. Hayashi; Y. Kayano; T. Mizuki; H. Sone; H. Inoue
Invited oral presentation, Japanese, 2009 IEICE General Conf., Domestic conference
Mar. 2009

EMC Problem Caused by Arc Discharge in Electrical Contacts
H. Inoue; Y. Kayano; K. Miyanaga
Invited oral presentation, Japanese, 2009 IEICE General Conf., Domestic conference
Mar. 2009

A Study on Relationship between Opening Velocity and Short-Time Arc for Silver Contact
S. Hanawa; K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2008, Sendai, Japan, International conference
Nov. 2008

A Measurement on Contact Voltage and Shape of Bridge at Low Speed Breaking Contacts
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, English, IS-EMD2008, Sendai, Japan, International conference
Nov. 2008

Computation of Electromagnetic Field Distribution in a Cross-Section of Connector with Contact Failure
M. Jarno; Y. Hayashi; Y. Kayano; H. Sone; H. Inoue
Oral presentation, English, IS-EMD2008, Sendai, Japan, International conference
Nov. 2008

A Study on Transmission and Coupling Characteristics of Transmission Lines on Model Chip
Y. Kayano; R. Yanagisawa; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2008

An Equivalent Circuit Model for Predicting CM Radiation from a Surface-Microstrip Line Structure
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ, Domestic conference
Sep. 2008

A Study on EMI from Printed Circuit Boards with Interconnection Coaxial Cable
Y. Kayano; H. Inoue
Oral presentation, English, 2008 IEICE Society Conf., Domestic conference
Sep. 2008

A measurement of the close current dependency of the contact voltage at the slowly making operation
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, 2008 IEICE Society Conf., Domestic conference
Sep. 2008

A Study on Effect of Opening Velocity on Short-Time Arc Generated by Slowly Breaking Silver Contact
H. Inoue; Y. Kayano; S. Hanawa; K. Miyanaga
Oral presentation, Japanese, 2008 IEICE Society Conf., Domestic conference
Sep. 2008

A measurement of the arrival time of the steady contact voltage at the slowly making contacts (part 2) The relationship between AgPd contact voltage
K.Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Jul. 2008

A Measurement of Current Noise of Short-Time Arc with External DC Mgnetic Field
H. Miura; Y. Kayano; K.Miyanaga; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Mar. 2008

An Equivalent Circuit Model for Predicting CM Radiation from a Surface-Microstrip Line Structure with an Attached Thin Wire
Y. Kayano; H. Inoue
Oral presentation, English, 2008 IEICE General Conf., Domestic conference
Mar. 2008

A Study on Common Mode Radiation from a Transmission Line with Connector Contact Failure
Y. Hayashi; Y. Kayano; H. Sone; H. Inoue
Oral presentation, Japanese, 2008 IEICE General Conf., Domestic conference
Mar. 2008

Experimental Study on EM Radiation from a PCB with Noise Suppression Sheet inside a Metallic Enclosure
H. Inoue; Y. Kayano; Y. Kojima; S. Miyata
Oral presentation, Japanese, 2008 IEICE General Conf., Domestic conference
Mar. 2008

A measurement of the arrival time of the steady contact voltage at the slowly making contacts
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, 2008 IEICE General Conf., Domestic conference
Mar. 2008

A Study on Heat Analysis for Breaking Contact with Low Velocity (Part 3) -Influence of Holder Structure on Temperature Rise of Electrode-
K.Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Dec. 2007

A Study on Heat Analysis for Breaking Contact with Low Velocity (Part 2) -Influence of Holder Structure on Temperature Rise of Electrode
K. Miyanaga; Y. Kayano; T. Takagi; H. Inoue
Oral presentation, English, IS-EMD2007, Shizuoka, Japan, International conference
Nov. 2007

Measurement of Current Noise up to GHz from Slowly Breaking AgSnO2 Contact with External Magnetic Field
H. Miura; Y. Kayano; K. Miyanaga; H. Inoue
Oral presentation, English, IS-EMD2007, Shizuoka, Japan, International conference
Nov. 2007

An Equivalent Circuit Model for Predicting CM Radiation from a Surface-Microstrip Line Structure
Y. Kayano; H. Inoue
Oral presentation, English, EMCJ, Domestic conference
Oct. 2007

A Study on EM Radiation from Aperture of Enclosure with PCB as Internal Noise Source (Part 5) -Effect of Placement of PCB-
S. Miyata; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2007

An Equivalent Circuit Model for Predicting EM Radiation from a Surface-Microstrip Line Structure
Y. Kayano; H. Inoue
Oral presentation, English, 2007 IEICE Society Conf., Domestic conference
Sep. 2007

A Study on Effect of Magnetic Field on Bridge and Arc Durations Generated by Slowly Breaking Silver Compound Contact
H. Inoue; Y. Kayano; H. Miura; K. Miyanaga
Oral presentation, Japanese, 2007 IEICE Society Conf., Domestic conference
Sep. 2007

A Study on EM Radiation through Aperture of Enclosure by Internal PCB Noise Source(Part 4) -Effect of Position of Internal Noise Source on EM Radiation-
S. Miyata; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2007 IEICE Society Conf., Domestic conference
Sep. 2007

A Temperature Rise Modeling of Pd Electrodes with Plate Holder
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, 2007 Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan, Domestic conference
Aug. 2007

A Measurement of Electromagnetic Noise up to Gigahertz Frequency Generated by Slowly Breaking Silver Contact (Part 5) -Effect of Operation Numbers on Noise Waveform-
Y. Kayano; T. Nakamura; K. Miyanaga; T. Mori; H. Inoue
Oral presentation, Japanese, EMD/EMCJ, Domestic conference
Jul. 2007

A Study on Heat Analysis for Breaking Contact with Low Velocity (Part 1) -Influence of Holder Structure on Temperature Rise of Electrode-
K.Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Jul. 2007

A Study on EM Radiation from Aperture of Enclosure with PCB as Internal Noise Source (Part 3)
S. Miyata; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
May 2007

A Measurement of Electromagnetic Noise up to Gigahertz Frequency Generated by Slowly Breaking Silver Contact (Part4) -Feature Extraction of Bridge and Short-Time Arc Waveforms-
Y. Kayano; K. Miyanaga; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Apr. 2007

A Study on Performance Improvement of Carrier Type Magnetic Probe using Magneto-Impedance Element
Y. Sasaki; Y. Kayano; K. Tan; T. Komakine; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Mar. 2007

A study on heat conduction in the electrodes at slowly braking silver palladium contacts
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Mar. 2007

Relationship between Voltage and Duration of Short-Time Arc Generated by Slowly Breaking Silver Contact
H. Inoue; Y. Kayano; K. Miyanaga; T. Mori
Oral presentation, Japanese, 2007 IEICE General Conf., Domestic conference
Mar. 2007

A Study on EM Radiation through Aperture of Enclosure by Internal PCB Noise Source(Part 2)
Y. Kayano; K. Katsumata; S. Miyata; H. Inoue
Oral presentation, Japanese, 2007 IEICE General Conf., Domestic conference
Mar. 2007

Experimental and Computational Studies on Temperature Rise of the Silver Palladium Alloy Opening Contacts
K.Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Dec. 2006

Detection of AC magnetic fields up to 1 GHz by a High-Frequency-Carrier Type Magnetic Probe (Part 3)
Y. Kayano; Y. Sasaki; K. Tan; T. Komakine; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2006

A Study on EM Radiation from Aperture of Enclosure with PCB as Internal Noise Source
S. Miyata; K. Katsumata; T. Kasuga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2006

A Study on EMI Resulting from Interconnected Printed Circuit Boards by a Cable
Y. Kayano; H. Inoue
Oral presentation, English, 2006 IEICE Society Conf., Domestic conference
Sep. 2006

Current Dependency of Electromagnetic Noise up to GHz Frequency Generated by Slowly Breaking Silver Contact
Y. Kayano; T. Nakamura; K. Miyanaga; T. Mori; H. Inoue
Oral presentation, Japanese, 2006 IEICE Society Conf., Domestic conference
Sep. 2006

A Temperature Rise Modeling of Pd Electrodes with Plate Holder
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2006 Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan, Domestic conference
Aug. 2006

電磁結合を有する伝送線路設計への電磁界解析の適用性に関する検討
A. Sasaki; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2006 Tohoku-Section Joint Convention of Institutes of Electrical and Information Engineers, Japan, Domestic conference
Aug. 2006

A Measurement of Electromagnetic Noise up to Gigahertz Frequency Generated by Slowly Breaking Silver Contact (Part 3)
Y. Kayano; T. Nakamura; K. Miyanaga; T. Mori; H. Inoue
Oral presentation, Japanese, EMD/EMCJ, Domestic conference
Jul. 2006

A Measurement of Electromagnetic Noise up to Gigahertz Frequency Generated by Slowly Breaking Silver Contact (Part2)
H. Inoue; T. Nakamura; K. Miyanaga; Y. Kayano
Oral presentation, Japanese, EMD, Domestic conference
Apr. 2006

Detection of AC magnetic fields up to 1 GHz by a High-Frequency-Carrier Type Magnetic Probe (Part 2)
Y. Kayano; K. Tan; K. Yamakawa; T. Komakine; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Apr. 2006

A Measurement of Electromagnetic Noise up to Gigahertz Frequency Generated by Slowly Breaking Silver Contact
T. Nakamura; Y. Kayano; K.Miyanaga; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Mar. 2006

The Relationship Between Opening Velocity and Temperature Rise of Palladium Contact
K. Miyanaga; T. Nakamura; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2006 IEICE General Conf., Domestic conference
Mar. 2006

An Experimental Study on Relationship Between Temperature Rise of Contact and Opening Voltage at Constant Supply Power
K. Miyanaga; T. Nakamura; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2006 IEICE General Conf., Domestic conference
Mar. 2006

Electromagnetic Radiation Resulting from Plural Signal Traces on a Printed Circuit Board
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, IS-EMD2005, Tokyo, Japan, International conference
Nov. 2005

A Study on Contact Temperature of Silver Palladium Compounds Related to Opening Condition
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, English, IS-EMD2005, Tokyo, Japan, International conference
Nov. 2005

Detection of AC magnetic fields up to 1 GHz by a High-Frequency-Carrier Type Magnetic Probe
K. Tan; K. Yamakawa; T. Komakine; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2005

Undesired Electromagnetic Radiation from a Printed Circuit Board with a Connected Feed Cable
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, Japanese, EMCJ, Domestic conference
Oct. 2005

A Study on the EMI Resulting from Plural Signal Traces on a PCB
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, 2005 IEICE Society Conf., Domestic conference
Sep. 2005

Detection of High Frequency Field by a High-Frequency-Carrier Type Magnetic Probe
K. Tan; K. Yamakawa; T. Komakine; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2005 IEICE Society Conf., Domestic conference
Sep. 2005

The Relationship between Integral Powers of Bridge and Arc Discharge and Contact Temperature of Silver Palladium Compounds
K. Miyanaga; T. Nakamura; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2005 IEICE Society Conf., Domestic conference
Sep. 2005

Heat phenomenon of Ag based Contacts by bridge and Arc
K.Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Mar. 2005

Frequency Response of Radiated Emission Resulting from a Nonzero Impedance
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, 2005 IEICE General Conf., Domestic conference
Mar. 2005

Breaking Arc and Temperature of Ag Compounds Contact with Cadmium
K. Miyanaga; Y. Kayano; H. Inoue
Oral presentation, Japanese, 2005 IEICE General Conf., Domestic conference
Mar. 2005

A Study on Transmission and Undesired Radiation Characteristics of Mount Model for High Frequency Element
H. Inoue; T. Kasuga; Y. Kayano; K. Tan; K. Yamakawa
Oral presentation, English, IS-EMD2004, Hokkaido, Japan, International conference
Oct. 2004

Characteristics of Electromagnetic Radiation from a Surface Microstrip Line Structure at High Frequency
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, IS-EMD2004, Hokkaido, Japan, International conference
Oct. 2004

Frequency Response of Radiated Emission from a PCB above 1GHz
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, 2004 IEICE Society Conf., Domestic conference
Sep. 2004

Common-Mode Current due to a Trace on a PCB with a Slit in the Ground Plane (Part 2)
M. Tanaka; Y. Kayano; J.L. Drewniak; H. Inoue
Oral presentation, English, 2004 IEICE Society Conf., Domestic conference
Sep. 2004

A Study on Electromagnetic Radiation from a PCB with a Guard-Band
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, 2004 IEICE General Conf., Domestic conference
Mar. 2004

Common-Mode Current due to a Trace on a PCB with a Slit in the Ground Plane
M. Tanaka; Y. Kayano; J.L. Drewniak; H. Inoue
Oral presentation, English, 2004 IEICE General Conf., Domestic conference
Mar. 2004

Identifying the Frequency Response of Common-Mode Current on a Semi-rigid Cable Attached to a PCB
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, English, IS-EMD2003, Hyogo, Japan, International conference
Nov. 2003

A Study on the Comparison between Common-Mode Current and Electromagnetic Radiation from a PCB with a Guard-Band
Y. Kayano; M. Tanaka; H. Inoue; J.L. Drewniak
Oral presentation, English, 2003 IEICE Society Conf., Domestic conference
Sep. 2003

A Study on Suppression of Common-Mode Current due to a Trace on a PCB
Y. Kayano; M. Tanaka; J.L. Drewniak; H. Inoue
Oral presentation, English, IS-EMD2002, Kanagawa Japan, International conference
Nov. 2002

A Simulation of Common-Mode Current on a Semi-rigid Cable Attached to a PCB (2)
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Apr. 2002

A Study on Effect of Guard-Band for Common-Mode Current due to a Trace near a PCB Edge
Y. Kayano; M. Tanaka; James L. Drewniak; H. Inoue
Oral presentation, English, 2002 IEICE General Conf., Domestic conference
Mar. 2002

FDTD Modeling of Common-Mode Current due to a Trace on a PCB with a Guard-Band
Y. Kayano; M. Tanaka; J.L. Drewniak; H. Inoue
Oral presentation, English, 2001 IEICE Society Conf., Domestic conference
Sep. 2001

A Simulation of Common-Mode Current on a Semi-rigid Cable Attached to a PCB
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
Apr. 2001

FDTD Modeling of Common-Mode Current on a Cable due to a Trace near a PCB Edge
M. Tanaka; Y. Kayano; J.L. Drewniak; H. Inoue
Oral presentation, English, 2001 IEICE General Conf., Domestic conference
Mar. 2001

FDTD Modeling of a Strip Line on a PCB and an EMI Antenna
Y. Kayano; M. Tanaka; H. Inoue
Oral presentation, Japanese, EMD, Domestic conference
23 Feb. 2001

Electronic Engineering Workshop (PBL)
Oct. 2019 - Present
The University of Electro-Communications

Electromagnetic Wave Engineering
Oct. 2018 - Present
The University of Electro-Communications, 先端工学基礎課程, Undergraduate special subjects

電子情報学実験Ｂ２
Oct. 2018 - Present
The University of Electro-Communications

Electronic Engineering Workshop
Apr. 2018 - Present
The University of Electro-Communications

電気電子生命実験
Sep. 2017 - Present
Meiji University

Applied Mathematics A
Apr. 2017 - Present
The University of Electro-Communications

Advanced Electromagnetic Compatibility
Apr. 2017 - Present
The University of Electro-Communications

Basic Exercises A
Apr. 2017 - Present
The University of Electro-Communications

Special Lecture on Informatics and Engineering A (Current Topics in Emerging Multi-interdisciplinary Engineering B)
Apr. 2021 - Mar. 2025
The University of Electro-Communications

Comprehensive Communications Sciences (PBL)
Oct. 2016 - Mar. 2017
The University of Electro-Communications

基礎電磁気学
Oct. 2016 - Mar. 2017
The University of Electro-Communications

情報・通信演習２
Oct. 2016 - Mar. 2017
The University of Electro-Communications

電子情報システム実験 第二
2017

Mar. 2017 - Present
JIEP

Aug. 2003 - Present
IEEE

Apr. 2001 - Present
IEICE

差動伝送線路からの電磁妨害の予測と負の群遅延線路開発によるその抑制
Yoshiki Kayano
Principal investigator
2013 - 2016

周期構造を組み込んだ新規広帯域分散遅延デバイスの開発
Y. Kayano
JST, A-STEP, Principal investigator
Oct. 2010 - Mar. 2011

Prediction and suppression of electromagnetic interference at gigahertz frequencies radiated from electronics device
Yoshiki Kayano
Principal investigator
2007 - 2009

Secretary, Special Section on Recent Development of Electro-Mechanical Devices 2024 (in English), Electronics Society, IEICE
Academic society etc, Planning etc, IEICE, Oct. 2024 - Present

Committee Member, Special Section on Electronic Displays
Peer review etc, Peer review, IEICE, 07 Mar. 2023 - Present

Secretary, Special Section on Electromagnetic Compatibility in Conjunction with EMC Japan/APEMC Okinawa
Academic society etc, Planning etc, IEICE, May 2024 - Sep. 2025

Secretary, Special Section on Recent Advances in Simulation Techniques for Electronics 2024
Academic society etc, Planning etc, IEICE, Jan. 2024 - May 2025

Secretary of TPC, EMC Japan / APEMC Okinawa
Competition etc, Planning etc, IEICE, Oct. 2022 - Sep. 2024, True

Secretary, Special Section on Recent Advances in Simulation Techniques for Electronics 2023
Others, Planning etc, IEICE, Jan. 2023 - May 2024

Secretary, Special Section on Recent Development of Electro-Mechanical Devices 2023 (in English), Electronics Society, IEICE
Academic society etc, Planning etc, IEICE, Dec. 2023 - 2024

Secretary, Special Section on Recent Development of Electro-Mechanical Devices 2022 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, Dec. 2022 - Dec. 2023

Secretary, Special Section on IEICE Trans. B Japanese Edition
Academic society etc, Planning etc, Mar. 2022 - Aug. 2023

Organizer of Special Session, APEMC 2022
Competition etc, Planning etc, APEMC, May 2022 - Sep. 2022

Guest Editor-in-Chief, Special Section on Recent Development of Electro-Mechanical Devices 2021 (in English), Electronics Society, IEICE
Academic research, Planning etc, Dec. 2021 - Aug. 2022

Co-Chair of Organizing Committee, International Conference on Electrical Contacts (ICEC 2022 Sapporo)
Academic society etc, Planning etc, IEICE, Jun. 2020 - Jun. 2022

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2022
Academic society etc, Planning etc, 2022 - 2022

Guest Editor-in-Chief, Special Section on Recent Development of Electro-Mechanical Devices 2020 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, Dec. 2020 - Aug. 2021

Organizer of Symposium, 2021 IEICE General Conference
Competition etc, Planning etc, IEICE, 09 Mar. 2021 - 09 Mar. 2021

Committee Member, Special Section on Electronic Displays (in English), Electronics Society, IEICE
Peer review etc, Peer review, IEICE, 29 Jan. 2021 - 2021

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2021
Peer review etc, Planning etc, IEICE, 2021 - 2021

Secretary, Guest Editor-in-Chief, Special Section on Recent Development of Electro-Mechanical Devices 2019 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, Dec. 2019 - Aug. 2020

Committee Member, Special Section on IEICE Trans. B Japanese Edition
Peer review etc, Planning etc, IEICE, 2020 - 2020

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2020
Peer review etc, Planning etc, IEICE, 2020 - 2020

Secretary, Special Section on Recent Development of Electro-Mechanical Devices 2018 (in English), Electronics Society, IEICE
Review, Planning etc, IEICE, Dec. 2018 - Aug. 2019

Organizer of Special Session, EMC Sapporo and APEMC 2019
Competition etc, Planning etc, IEICE, Jun. 2019 - Jun. 2019

Organizing Committee and Public Relations Subcommittee. EMC Sapporo and APEMC 2019
Competition etc, Planning etc, IEICE, Jun. 2017 - Jun. 2019

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2019
Peer review etc, Planning etc, IEICE, 2019 - 2019

Committee Member, Special Section on IEICE Trans. B Japanese Edition
Peer review etc, Planning etc, IEICE, 2018 - 2018

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2018
Peer review etc, Planning etc, IEICE, 2018 - 2018

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2017
Planning etc, IEICE, 2017 - 2017

Committee Member, Special Section on Recent Development of Electro-Mechanical Devices 2017 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, 2017 - 2017

Organizer of Special Session, APEMC'16
Competition etc, Planning etc, APEMC, May 2016 - May 2016

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2016
Peer review etc, Planning etc, IEICE, 2016 - 2016

Secretary, Special Section on Recent Development of Electro-Mechanical Devices 2016 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, 2016 - 2016

Organizer of Symposium, 2015 IEICE Society Conference
Competition etc, Planning etc, IEICE, Sep. 2015 - Sep. 2015

Organizer of Special Session, APEMC’15
Competition etc, Planning etc, APEMC, May 2015 - May 2015

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2015
Peer review etc, Planning etc, IEICE, 2015 - 2015

Secretary, Special Section on Recent Development of Electro-Mechanical Devices 2015 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, 2015 - 2015

Organizer of Special Session, EMC'14/Tokyo
Competition etc, Planning etc, IEICE, Jun. 2014 - Jun. 2014

Organizing Committee and Public Relations Subcommittee, EMC'14/Tokyo
Competition etc, Planning etc, IEICE, Jun. 2013 - Jun. 2014

Committee Member, Special Section on Recent Advances in Simulation Techniques for Electronics 2014
Peer review etc, Planning etc, IEICE, 2014 - 2014

Committee Member, Special Section on Recent Development of Electro-Mechanical Devices 2014 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, 2014 - 2014

Committee Member, Special Section on Recent Development of Electro-Mechanical Devices 2013 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, 2013 - 2013

Organizer of Special Session, The SICE Annual Conference 2012
Competition etc, Planning etc, SICE, Aug. 2012 - Aug. 2012

Secretary, The SICE Annual Conference 2012
Competition etc, Planning etc, SICE, Aug. 2012 - Aug. 2012

Committee Member, Special Section on Recent Development of Electro-Mechanical Devices 2012 (in English), Electronics Society, IEICE
Peer review etc, Planning etc, IEICE, 2012 - 2012