Kun Li
| Advanced Wireless Communication Research Center | Associate Professor |
| Department of Computer and Network Engineering | Associate Professor |
| Cluster II (Emerging Multi-interdisciplinary Engineering) | Associate Professor |
- Profile:
Kun Li (李鯤) received the B.E. degree in communication engineering from the Nanjing University of Posts and Telecommunications, Nanjing, China, in 2011, and the M.E. and Ph.D. degrees in electrical engineering from the University of Toyama, Toyama, Japan, in 2014 and 2017, respectively.
From 2017 to 2019, he was a Researcher with the Electromagnetic Compatibility Laboratory, National Institute of Information and Communications Technology, Tokyo, Japan. From 2020 to 2023, he was an Assistant Professor with the Faculty of Engineering and Design, Kagawa University, Takamatsu, Japan. He was a Visiting Researcher with the CNRS/IETR, University of Rennes 1, Rennes, France, from 2022 to 2023. In 2023, he joined the Advanced Wireless and Communication Research Center, The University of Electro-Communications, Tokyo, Japan, where he is currently working as an Associate Professor. His research interests include electromagnetic computation and measurement for radiation safety by human exposure to electromagnetic fields in radio frequencies, antenna design and measurement techniques for wireless body area network system.
He was the recipient of the Young Scientist Award of the URSI, in 2020, the Risaburo Sato Award of EMC Sapporo & AMPEC, in 2019, the IEEE AP-S Japan Student Award in 2015, and the IEICE Best Letter Award in 2017. He is currently the Early Career Representative of URSI Commission K, and the Co-Chair of Working Group under Subcommittee 6, the IEEE International Committee on Electromagnetic Safety (ICES) TC-95 since 2022. He is a senior member of URSI and a member of IEEE and IEICE.
Researcher Information
Field Of Study
Career
- Apr. 2023 - Present
The University of Electro-Communications, Advanced Wireless and Communication Research Center, 准教授 - Apr. 2022 - Mar. 2023
CNRS/IETR University of Rennes, Visiting Researcher - Jan. 2021 - Mar. 2023
National Institute of Information and Communications Technology, 電磁波研究所, Cooperative Researcher - Jan. 2020 - Mar. 2023
Faculty of Engineering and Design, Kagawa University, Assistant Professor - Apr. 2017 - Dec. 2019
National Institute of Information and Communications Technology, Applied Electromagnetic Research Institute, Researcher
Educational Background
Member History
- Apr. 2025 - Present
代議員, 電子情報通信学会代議員会 - Nov. 2024 - Present
Guest Editor, IEEE AWPL Special Cluster 2025 on “Measurement and Metrology Theory and Technologies for Future 6G Wireless” - Jun. 2024 - Present
委員, 日本学術会議電気電子工学委員会 URSI 分科会医用生体電磁気学小委員会, Society - Jun. 2024 - Present
支部委員(学生会), 電子情報通信学会東京支部運営委員会, Society - Dec. 2023 - Present
Associate Editor, IEEE Antenna and Wireless Propagation Letters, Society - Aug. 2023 - Present
学生会顧問, 電子情報通信学会東京支部運営委員会 - Aug. 2023 - Present
Early Career Representative (ECR), International Union of Radio Science (URSI), Commission-K, Society - Jun. 2023 - Present
電子情報通信学会 ヘルスケア・医療情報通信技術研究会 幹事補佐 - Jan. 2022 - Present
Co-Chair, IEEE International Committee on Electromagnetic Safety TC95/SC6 WG7 - Aug. 2020 - Present
IEEE International Committee on Electromagnetic Safety TC95/SC6 Member - Dec. 2023
電子情報通信学会和文誌B EMC特集号，編集委員 - Jun. 2021 - Jun. 2023
Expert Advisor, IEICE MICT Committee - Sep. 2021
2021年度電気・電子・情報関係学会四国支部連合大会 現地実行委員オンライン会場担当 - Jan. 2021
Guest Editor, Frontiers in Public Health, Special Issue: "Human Exposure to New-Emerging Electric, Magnetic and Electromagnetic Fields"
Research Activity Information
Award
- Mar. 2023
環境電磁工学研究会若手優秀賞 - Aug. 2020
URSI GASS 2020 Young Scientist Award - Jun. 2019
EMC Sapporo & AMPEC 2019
The Risaburo Sato Award - Apr. 2019
国立研究開発法人情報通信研究機構功績賞 - Mar. 2018
医用生体電磁気学研究会若手優秀発表賞 - May 2017
IEICE Communications Society ComEX Best Letter Award - Mar. 2017
富山大学大学院理工学教育部研究業績優秀賞 - Sep. 2016
Toyama Science GALA 2016 若手研究部門優秀賞 - Apr. 2016
IEEE Nagoya Section Conference Presentation Award - Mar. 2016
ISMICT2016学生研究奨励賞 - Dec. 2015
IEEE AP-S Japan Student Award - Sep. 2015
H27年度富山大学若手研究者等の学術交流・発表会優秀賞 - Sep. 2015
電気関係学会北陸支部連合大会電子情報通信学会学生優秀論文発表賞 - May 2015
公益財団法人ロータリー米山記念奨学金 - Dec. 2014
ISAP2014 Student Paper Contest Finalist - Aug. 2014
iWEM2014 Student Innovation Competition Award Finalist - Apr. 2014
富山大学国際交流事業奨学金 - Oct. 2013
富山大学学生海外渡航事業助成金 - Apr. 2013
公益財団法人朝日国際教育財団奨学金
Paper
- Recent Advances and Future Perspective in Computational Bioelectromagnetics for Exposure Assessments.
Yinliang Diao; Wout Joseph; Dragan Poljak; Luca Giaccone; Sachiko Kodera; Ilkka Laakso; Kenichi Yamazaki; Kun Li; Kensuke Sasaki; Emmeric Tanghe; Mario Cvetković; Walid El Hajj; Takashi Hikage; Fatih Kaburcuk; Gernot Schmid; Anna Šušnjara Nejašmić; Thomas Tarnaud; Vitas Anderson; Kenneth R Foster; Theodoros Samaras; Richard A Tell; Soichi Watanabe; Chung-Kwang Chou; Akimasa Hirata
Bioelectromagnetics, 46, 3, e70002, Apr. 2025, Peer-reviwed, True, In the last few decades, extensive efforts have been dedicated to developing computational methods for modeling the interaction of the human body with electromagnetic fields (EMFs). These studies are crucial for the establishment of exposure limits in international standards and guidelines for human protection from EMF, as well as for advancing personalized dosimetry assessment for medical applications using EMF. To summarize the state-of-the-art knowledge in this field, the IEEE International Committee on Electromagnetic Safety (ICES) held an International Workshop on Computational Bioelectromagnetics in February 2024. This review summarizes the technical presentations and discussions from the workshop and was contributed by multiple authors, encompassing topics such as the tissue dielectric property measurement, low-frequency and radio-frequency bioelectromagnetic modeling methods, stochastic modeling in electromagnetic-thermal dosimetry, intercomparison studies, and computational uncertainties. The insights gained from this workshop will guide future research and aid in the development of more accurate and reliable exposure assessment methods.
Scientific journal, English - Beyond 20 Bits/s/Hz Channel Capacity Realization With Compact MIMO Antennas for Human-Centric IoT Devices
Hongda Xu; Kun Li; Xiaolong Wang; Yuto Sekino; Kazuhiro Honda; Geyu Lu
IEEE Internet of Things Journal, 2025, Peer-reviwed
Scientific journal - A Novel Method for Evaluating 5G Handset Array Antenna Exposure Applied to Irregular Human Body Models
Chunxiao Li; Hongda Xu; Kun Li; Xiaolong Wang; Geyu Lu
IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers (IEEE), 73, 1, 677-682, Jan. 2025, Peer-reviwed
Scientific journal - Prediction of Electromagnetic Field Exposure at 20–100 GHz for Clothed Human Body Using an Adaptively Reconfigurable Architecture Neural Network With Weight Analysis (RAWA-NN) Framework
Ming Yao; Zhaohui Wei; Kun Li; Gert Frølund Pedersen; Shuai Zhang
IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers (IEEE), 72, 12, 9286-9300, Dec. 2024, Peer-reviwed
Scientific journal - Field Strength Assessment for Underground Wireless Communication at LF Bands
Haruto Utsushigawa; Kun Li; Takuma Matsumoto; Shota Yamada; Takeo Fujii
2024 IEEE International Workshop on Wireless Sensing Technologies and Applications (IWSA), Nov. 2024, Peer-reviwed
International conference proceedings - MIMO Capacity Analysis of Wearable Antennas in FR3 Lower Band
Hongda Xu; Kun Li; He Liu; Yanfeng Sun; Chunxiao Li; Xiaolong Wang
2024 IEEE 10th International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications (IEEE MAPE 2024), Nov. 2024, Peer-reviwed
International conference proceedings - Assessment of Whole-Body-Average SAR for Exposure to Electromagnetic Fields up to 30 GHz Using Body Model With Scaled Dielectric Parameters
Yinliang Diao; Sachiko Kodera; Kun Li; Akimasa Hirata
IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers (IEEE), 66, 5, 1351-1360, Jul. 2024, Peer-reviwed
Scientific journal - Novel 60 GHz Band Spatial Synthetic Exposure System for Investigating Thermal Physiological Responses to Simultaneous Localized Millimeter- Wave Exposure at Multiple Skin Points
URSI Radio Science Letters, International Union of Radio Science (URSI), 6, 2024, Peer-reviwed
Scientific journal - Spatially Averaged Epithelial/Absorbed Power Density for Nonplanar Skin Models Exposed to Antenna at 10–90 GHz
Kun Li; Sachiko Kodera; Dragan Poljak; Yinliang Diao; Kensuke Sasaki; Shuai Zhang; Ming Yao; Ante Kapetanovic; Congsheng Li; Tongning Wu; Thorsten Liebig; Winfried Simon; Akimasa Hirata
Lead, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), 12, 15379-15389, Jan. 2024, Peer-reviwed
Scientific journal - A wideband dual‐band bandstop filter with flexible control of stopband rejection, bandwidth and centre frequency ratio
Chang Xu; Xiaolong Wang; Lei Zhu; Wenzhong Sun; Kun Li; Gennadi Milinevsky; Geyu Lu
IET Microwaves, Antennas & Propagation, Institution of Engineering and Technology (IET), 29 Dec. 2023, Peer-reviwed, Abstract
A novel wideband dual‐band bandstop filter with multi‐transmission zeros and multi‐reflection zeros is presented. It consists of two pairs of symmetric open‐ended coupled lines at two sides and (2N − 1) pairs of coupled‐line sections with an open‐circuited stub in the middle. Through even‐ and odd‐mode analyses, general simultaneous equations for characteristic impedances are derived with the proposed algorithm. By suitably selecting all the design parameters, the proposed topology could not only provide a controllable equal‐ripple response in the passband but also control the stopband rejection, bandwidth (BW), and centre frequency ratio in the stopband flexibly. For verification, one prototype circuit is finally fabricated and measured in the experiment. Good agreement between the measured and simulated results is attained so as to successfully validate the correctness of the proposed design method.
Scientific journal - Parameter variation effects on millimeter wave dosimetry based on precise skin thickness in real rats.
Kun Li; Takashi Hikage; Hiroshi Masuda; Etsuko Ijima; Akiko Nagai; Kenji Taguchi
Lead, Scientific reports, 13, 1, 17397-17397, 13 Oct. 2023, Peer-reviwed, True, This study presents a parametric analysis of the steady-state temperature elevation in rat skin models due to millimeter wave exposure at frequencies from 6-100 GHz. The statistical data of the thickness of skin layers, namely epidermis, dermis, dermal white adipose tissue, and panniculus carnosus, were measured for the first time using the excised tissues of real male Sprague-Dawley rats. Based on the precise structure obtained from the histological analysis of rat skin, we solve the bioheat transfer equation to investigate the effects of changes in parameters, such as body parts and thermal constants, on the absorbed power density and temperature elevation of biological tissues. Owing to the notably thin dermal white adipose tissue layer, the surface temperature elevation in the rat head and dorsal skin at 6-100 GHz is 52.6-32.3% and 83.3-58.8% of the average values of different human skin models, respectively. Our results also reveal that the surface temperature elevation of rat skin may correlate with the tissue thickness and deep blood perfusion rates.
Scientific journal, English - Novel Vertically Exposure System Using Spatial Synthetic Antennas to Investigate Thermo-Physiological and Cellular Function Changes Induced by Millimeter-Wave Exposure
Kaito Sugimura; Takashi Hikage; Hiroshi Masuda; Tatsuya Ishitake; Kun Li; Akiko Nagai
2023 International Symposium on Antennas and Propagation (ISAP), Oct. 2023, Peer-reviwed
International conference proceedings - Clothing Effect on Multilayered Skin Model Exposure From 20 GHz to 100 GHz
Kun Li; Kensuke Sasaki; Giulia Sacco; Maxim Zhadobov
Lead, IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, Institute of Electrical and Electronics Engineers (IEEE), 1-8, Sep. 2023, Peer-reviwed
Scientific journal - Intensity-dependent Temperature Rise Induced by Local Exposure to 26.5 GHz Quasi-Millimeter-Wave in Rat
ETSUKO IJIMA; KUN LI; TAKASHI HIKAGE; AKIKO NAGAI; YASUTAKA MURAKAMI; TAKUJI ARIMA; TATSUYA ISHITAKE; HIROSHI MASUDA
In Vivo, Anticancer Research USA Inc., 37, 5, 2092-2099, 31 Aug. 2023, Peer-reviwed
Scientific journal - Effects of high intensity local exposure to 26.5 GHz-millimeter-waves on glial cells in rat brain
Hiroshi Masuda; Etsuko Ijima; Takashi Hikage; Kun Li; Sachiko Kodera; Akimasa Hirata; Tatsuya Ishitake
2023 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2023), Aug. 2023, Peer-reviwed
International conference proceedings - Histological effects of high intensity local exposure to 26.5 GHz-millimeter waves on dorsal skin in rat
Naomi Kamizawa; Etsuko Ijima; Tatsuya Ishitake; Akiko Nagai; Takashi Hikage; Kun Li; Hiroshi Masuda
2023 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2023), Aug. 2023, Peer-reviwed
International conference proceedings - Effects of local exposure to 26.5 GHz-millimeter wave on neuronal cells in rat brain
Emi Hidaka; Etsuko Ijim; Yukina Tsuruta; Tatsuya Ishitake; Akiko Nagai; Takashi Hikage; Kun Li; Hiroshi Masuda
2023 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2023), Aug. 2023, Peer-reviwed
International conference proceedings - Prediction of Maximum Temperature Rise on Skin Surface for Local Exposure at 10–90 GHz
Ante Kapetanovi ́c; Dragan Poljak; Kun Li
2023 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science, Aug. 2023, Peer-reviwed
International conference proceedings - Intercomparison of Spatially Averaged Absorbed Power Density above 10 GHz
Kun Li; Sachiko Kodera; Dragan Poljak; Yinliang Diao; Kensuke Sasaki; Anna Susnjara; Alexander Prokop; Kenji Taguchi; Jingtian Xi; Shuai Zhang; Ming Yao; Giulia Sacco; Maxim Zhadobov; Walid El Hajj; Akimasa Hirata
2023 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2023), Aug. 2023, Peer-reviwed
International conference proceedings - Analytical Channel Model for On-Body Antenna at 60 GHz
Kun Li; Giulia Sacco; Bernard Uguen; Maxim Zhadobov
2023 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2023), Aug. 2023, Peer-reviwed
International conference proceedings - A Ring Type Bandpass Filtering Impedance Transformer With Complex Load
Yuetian Wang; Zizhuo Sun; Xianwang Yang; Kun Li; Xiaolong Wang; Gennadi Milinevsky; Geyu Lu
International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM 2023), Jul. 2023, Peer-reviwed
International conference proceedings - Frequency Dependence Analysis of MMW Human-Skin Exposure using Regression Algorithm
Kun Li
International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM 2023), Jul. 2023, Peer-reviwed
International conference proceedings - A Novel Power Divider With Arbitrary Power Ratio, Arbitrary Phase Difference and Controllable Bandwidths
Shuo Yang; Xiaolong Wang; Lei Zhu; Xin Gao; Kun Li; Valerii Shulga; Geyu Lu
AEU - International Journal of Electronics and Communications, Elsevier BV, 154773-154773, Jun. 2023, Peer-reviwed
Scientific journal - Standardized benchmark dataset for localized exposure to a realistic source at 10-90 GHz
Ante Kapetanovi ́c; Dragan Poljak; Kun Li
The Joint Annual Meeting of The Bioelectromagnetics Society and the European BioElectromagnetics Association (BioEM2023), Jun. 2023, Peer-reviwed
International conference proceedings - Comparisons of Absorbed power density and Incident Power Density for EMF exposure in the near-field at 10–90 GHz
Ming Yao; Kun Li; Shuai Zhang
Swedish Microwave Days 2023, May 2023, Peer-reviwed
International conference proceedings - A Study on Exposure to Electromagnetic Fields From User Equipment Antennas Above 100 GHz
Ming Yao; Stanislav Stefanov Zhekov; Bo Xu; Kun Li; Shuai Zhang
IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers (IEEE), 1-8, Apr. 2023, Peer-reviwed
Scientific journal - Calculated Epithelial/Absorbed Power Density for Exposure From Antennas at 10–90 GHz: Intercomparison Study Using a Planar Skin Model
Kun Li; Sachiko Kodera; Dragan Poljak; Yinliang Diao; Kensuke Sasaki; Anna Šušnjara; Alexander Prokop; Kenji Taguchi; Jingtian Xi; Shuai Zhang; Ming Yao; Giulia Sacco; Maxim Zhadobov; Walid El Hajj; Akimasa Hirata
Lead, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), 11, 7420-7435, Jan. 2023, Peer-reviwed
Scientific journal - Experimental Study of Intra-Vehicle Ultra-Wideband Propagation Channels with Human Body Effects
Kun Li
2022 International Applied Computational Electromagnetics Society (ACES-China) Symposium, Dec. 2022, Peer-reviwed
International conference proceedings - Development of a Numerical Model of 60 GHz Band Lens Antenna for the Study of Thermo-Physiological and Cellular Function Changes Induced by Millimeter-Wave Exposure
Kohei Yamamoto; Takashi Hikage; Hiroshi Masuda; Tatsuya Ishitake; Kun Li; Akiko Nagai
2022 International Symposium on Antennas and Propagation (ISAP), IEEE, 277-27, 31 Oct. 2022
International conference proceedings - A Novel 60 GHz Spatial Synthetic Exposure Set-up for the Study of Thermal Perception Thresholds for Biological Effects of 5G and Beyond Wireless Systems
Kohei Yamamoto; Takashi Hikage; Hiroshi Masuda; Tatsuya Ishitake; Kun Li; Akiko Nagai
2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM), IEEE, 37-38, 29 Aug. 2022, Peer-reviwed
International conference proceedings - A Microwave CSRR Sensor for Non-Invasive Glucose-Level Detection
Zizhuo Sun; Huixin Zhang; Shaojun Zhang; Nan Zhang; Kun Li; Xiaolong Wang
2022 IEEE 5th International Conference on Electronic Information and Communication Technology (ICEICT), IEEE, 872-874, 21 Aug. 2022, Peer-reviwed
International conference proceedings - Multivariate Regression Analysis of Skin Temperature Rises for Millimeter-Wave Dosimetry
Kun Li
Lead, IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers ({IEEE}), 64, 4, 1-10, Aug. 2022, Peer-reviwed
Scientific journal - Two-Way Power Divider With Wide Tunable Power Ratio Range for Weighted-Polarization MIMO Antenna in BAN Radios at 2.45 GHz
Taiyang Xie; Ruiya Shi; Shuai Wang; Xiaolong Wang; Kazuhiro Honda; Kun Li; Geyu Lu
IEEE Antennas and Wireless Propagation Letters, Institute of Electrical and Electronics Engineers (IEEE), 21, 7, 1333-1337, Jul. 2022, Peer-reviwed
Scientific journal - Human Skin Exposure to Terahertz Waves from 0.1 to 1 THz: Statistical Assessments Using Multilayered Planar Models
Kensuke Sasaki; Kun Li; Tomoaki Nagaoka
2022 IEEE MTT-S International Microwave Biomedical Conference (IMBioC), IEEE, 25-27, 16 May 2022, Peer-reviwed
International conference proceedings - Monte Carlo Simulation of Clothed Skin Exposure to Electromagnetic Field With Oblique Incidence Angles at 60 GHz
Kun Li; Kensuke Sasaki
Lead, Frontiers in Public Health, Frontiers Media {SA}, 10, 795414, 14 Feb. 2022, Peer-reviwed, This study presents an investigation of clothed human skin exposure to obliquely incident electromagnetic waves at 60 GHz. We clarified the combined impacts of the cloth material, incidence angle, and polarization on the assessment of transmittance and absorbed power density (APD ) at the skin surface. A Monte Carlo simulation was conducted considering the thickness variation of the cloth material and skin tissue. For the case of transverse magnetic™ wave exposure, the transmittance increases with increasing incident angle up to the maximum transmittance angle in the range from 60 to 80°, which is known as the Brewster effects, regardless of textile materials and air gap between cloth and skin. The air gap results in a periodic fluctuation of theAPD , where the variation is almost within 1 dB when the incident power density is constant and the incident angle is smaller than 40°. Our results also show that as the air gap increases to 2.5 mm, i.e., half-wavelength at 60 GHz in the air, theAPD within the skin surface covered by typical cloth materials increases up to 40% compared with that of bare skin. Although the use of several cloth materials may increase the transmittance andAPD in oblique incidence scenarios, all the results of theAPD do not exceed the basic restriction for local exposure, demonstrating that the current guidelines for human exposure to electromagnetic fields are appropriate for preventing the excessive exposure at 60 GHz considering the impacts of oblique incidence angles and cloth materials.
Scientific journal - 2-Way Power Divider With Wide Tunable Power Ratio Range for Weighted-Polarization MIMO Antenna in BAN Radios at 2.45 GHz
Taiyang Xie; Ruiya Shi; Shuai Wang; Xiaolong Wang; Kazuhiro Honda; Kun Li; Geyu Lu
IEEE Antennas and Wireless Propagation Letters, Institute of Electrical and Electronics Engineers ({IEEE}), 1-1, 2022
Scientific journal - Intercomparison of Calculated Incident Power Density and Temperature Rise for Exposure from Different Antennas at 10–90 GHz
Kun Li; Yinliang Diao; Kensuke Sasaki; Alex; er Prokop; Dragan Poljak; Vicko Doric; Jingtian Xi; Sachiko Kodera; Akimasa Hirata; Walid El Hajj
Lead, IEEE Access, Institute of Electrical and Electronics Engineers ({IEEE}), 9, 1-1, Nov. 2021, Peer-reviwed
Scientific journal - Effect of Incidence Angle on the Spatial-Average of Incident Power Density Definition to Correlate Skin Temperature Rise for Millimeter Wave Exposures
Yinliang Diao; Kun Li; Kensuke Sasaki; Sachiko Kodera; Ilkka Laakso; Walid El Hajj; Akimasa Hirata
IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers ({IEEE}), 63, 5, 1-16, Oct. 2021, Peer-reviwed
Scientific journal - Analysis of MMW Exposure of a Clothed Skin with Oblique Incidence Angles
Kun Li; Kensuke Sasaki; Kanako Wake
2021 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science, Aug. 2021, Peer-reviwed
International conference proceedings - Quantitative Comparison of Power Densities Related to Electromagnetic Near-Field Exposures with Safety Guidelines from 6 to 100 GHz
Kun Li; Kensuke Sasaki; Kanako Wake; Teruo Onishi; Soichi Watanabe
Lead, IEEE Access, Institute of Electrical and Electronics Engineers ({IEEE}), 9, 1-1, Aug. 2021, Peer-reviwed
Scientific journal - FDTD analysis of pulsed electromagnetic fields for intra-vehicle UWB radios using a voxel human head model
Kun Li; Jerdvisanop Chakarothai; Katsumi Fujii
IEICE Proceeding Series, The Institute of Electronics, Information and Communication Engineers, 63, H1-1, 02 Dec. 2020, Peer-reviwed, This paper analyzed the UWB pulsed EM-field in the vicinity of a driver’s head for intra-vehicle UWB radio design. The FDTD method considering frequency dispersion properties of human tissue was used. The incident angle dependence of pulse EM-field around human head is investigated by evaluating the wideband wireless properties, such as power delay profiles and average received power of the arriving wave signals.
International conference proceedings, English - Computational Comparison of Power Density Definitions in the Proximity of Antennas for the Assessment of Human Exposure to EMF above 6 GHz
Kun Li; Kensuke Sasaki; Kanako Wake; Teruo Onishi; Soichi Watanabe
2020 XXXIIIrd General Assembly and Scientific Symposium of the International Union of Radio Science, IEEE, Aug. 2020, Peer-reviwed
International conference proceedings - Advanced Techniques for Electric Field Measurements of Multi-Antenna Transmitters in Compliance Tests
Dinh Thanh Le; Kun Li; Soichi Watanabe
2019 URSI-Japan Radio Science Meeting (URSI-JRSM 2019), 116, Aug. 2019
International conference proceedings - A Preliminary Study on Assessment of Absorbed Power Density inside a Human Body Based on Measurement of Reflection of Electromagnetic Wave
Ryo Matsumoto; Kun Li; Kensuke Sasaki; Soichi Watanabe; Kanako Wake; Ryosuke Suga
2019 URSI-Japan Radio Science Meeting (URSI-JRSM 2019), 196, Aug. 2019, Peer-reviwed
International conference proceedings - An Assessment of Incident Power Density Using Near-Field Reconstruction Algorithm at Millimeter-Wave Frequencies
Kensuke Sasaki; Kun Li; Kanako Wake; Soichi Watanabe
2019 URSI-Japan Radio Science Meeting (URSI-JRSM 2019), 117, Aug. 2019, Peer-reviwed
International conference proceedings - Experimental Validations on Low-Error Estimation Models in Determining the Maximum Specific Absorption Rate of Multi-Antenna Mobile Handsets
Dinh Thanh Le; Kun Li; Soichi Watanabe
2019 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS), IEEE, Aug. 2019, Peer-reviwed
International conference proceedings - $K$ -Order Estimation Technique for Determining the Maximum Electric Fields of Multiple-Antenna Transmitters in Compliance Tests
Kun Li
IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers (IEEE), 67, 8, 5602-5613, Aug. 2019, Peer-reviwed
Scientific journal - Determining the Maximum Local Specific Absorption Rate of a Multiple-Antenna Transmitter Using K-Order Electric Field Models
Dinh Thanh Le; Kun Li; Soichi Watanabe; Teruo Onishi
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, IEEE, 523-524, Jul. 2019, Peer-reviwed
International conference proceedings - Measurement Scheme Consideration for Near-Field Reconstruction Based on Plane Wave Spectrum Expansion Using a Phased Array Antenna at 28 GHz
Kun Li; Kensuke Sasaki; Soichi Watanabe; Kanako Wake; Junji Higashiyama; Teruo Onishi
The Joint Annual Meeting of The Bioelectromagnetics Society and the European BioElectromagnetics Association (BioEM2019), 244-246, Jun. 2019, Peer-reviwed
International conference proceedings - An Effective Exposure Area of Power Density for a Dosimetric Study using 60-GHz Antennas
Kun Li; Kensuke Sasaki; Soichi Watanabe; Kanako Wake
2019 Joint International Symposium on Electromagnetic Compatibility and Asia-Pacific International Symposium on Electromagnetic Compatibility (EMC Sapporo & APEMC 2019), Jun. 2019, Peer-reviwed
International conference proceedings - A Novel Estimation Technique using K-Order Models to Evaluate the Maximum Electric Field of Multiple-Antenna Transmitters
Dinh Thanh Le; Kun Li; Soichi Watanabe; Teruo Onishi
2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility (EMC Sapporo/APEMC), IEEE, 78-81, Jun. 2019, Peer-reviwed
International conference proceedings - Accuracy of Incident Power Density Measured Using Reconstructing Algorithm for Compliance Assessment of Devices in Near-Field at Millimeterwave Frequencies
Kensuke Sasaki; Kun Li; Kanako Wake; Soichi Watanabe; Junji Higashiyama; Teruo Onishi
2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility (EMC Sapporo/APEMC), IEEE, 43-46, Jun. 2019, Peer-reviwed
International conference proceedings - Averaging Area for Transmitted Power Density Correlated to Temperature Elevation on Human Skin Surface due to RF Exposure at 60 GHz
Kun Li; Kensuke Sasaki; Soichi Watanabe; Kanako Wake
2019 IEEE MTT-S International Microwave Biomedical Conference (IMBioC), IEEE, May 2019, Peer-reviwed
International conference proceedings - A New Measurement Technique to Determine the Maximum SAR of Multiple-Antenna Transmitters Using K-Order Models and Scalar E-Field Probes
Dinh Thanh Le; Kun Li; Soichi Watanabe; Yoshio Karasawa
2019 26th International Conference on Telecommunications, ICT 2019, Institute of Electrical and Electronics Engineers Inc., 453-457, 01 Apr. 2019, In this paper, we develop an K-order model expressing the specific absorption rate (SAR) at an observation point when evaluating the electromagnetic exposure to multiple-Antenna transmitters. By using the proposed model, we will be able to precisely estimate the SARs for different combinations of the relative phases of the sources, and thus to identify the maximum SAR. Detailed discussions on the K-order model and the estimation technique will be presented. We also conduct several measurements to verify the performance of the proposed estimation technique, and compare the effectiveness the proposed technique with conventional techniques. As a result, it is confirmed that the proposed technique with K-order estimations can considerably reduce the estimation errors, and thus giving highly precise estimated SAR values. In particular, when evaluating of the SAR of a three-Antenna configuration, the maximum estimation error caused by conventional estimations is about 6%, which can be reduced to about 3% or 2% by the 1-and 2-order estimations, respectively.
International conference proceedings, English - A New Measurement Technique to Determinate the Maximum SAR of Multiple-Antenna Transmitters Using K-Order Models and Scalar E-Field Probes
Dinh Thanh Le; Kun Li; Soichi Watanabe; Yoshio Karasawa
26th International Conference on Telecommunications (ICT 2019), Apr. 2019, Peer-reviwed
International conference proceedings - Relationship between power density and surface temperature elevation for human skin exposure to electromagnetic waves with oblique incidence angle from 6 GHz to 1 THz
Kun Li; Kensuke Sasaki; Soichi Watanabe; Hiroshi Shirai
Lead, Physics in Medicine & Biology, IOP Publishing, 64, 6, 065016-065016, 14 Mar. 2019, Peer-reviwed
Scientific journal - Estimation of Transmitted Power Density from Temperature Experiment for EMF Exposure Assessment at 60 GHz
Kun Li; Kengo Kawabata; Kensuke Sasaki; Ryosuke Suga; Soichi Watanabe; Osamu Hashimoto
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), IEEE, Mar. 2019, Peer-reviwed
International conference proceedings - Design of Human-Skin Equivalent Phantom for Evaluating the Surface Temperature Elevation due to Millimeter Wave Exposure
Kengo Kawabata; Kensuke Sasaki; Kun Li; Ryosuke Suga; Soichi Watanabe; Osamu Hashimoto
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), IEEE, Mar. 2019, Peer-reviwed
International conference proceedings - Exposure Assessment of Surface Temperature Elevation at Millimeter Wave Frequencies using a Designed Phantom
Kengo Kawabata; Kun Li; Kensuke Sasaki; Ryosuke Suga; Soichi Watanabe; Osamu Hashimoto
6th International SmartCity Symposium 2018, Oct. 2018, Peer-reviwed
International conference proceedings - Heat Potential of Power Density for MMW Exposure Assessment from 6 GHz to 1 THz
Kun Li; Kensuke Sasaki; Soichi Watanabe
Kun Li, Kensuke Sasaki, and Soichi Watanabe, 222, Aug. 2018, Peer-reviwed
International conference proceedings - Evaluation of Heating Effects to Millimeter Wave Exposure in Oblique Incidence
Kun Li; Kensuke Sasaki; Soichi Watanabe
The Joint Annual Meeting of The Bioelectromagnetics Society and the European BioElectromagnetics Association (BioEM2018), 593-595, Aug. 2018, Peer-reviwed
International conference proceedings - Power Density Estimation Using Back-Projection Technique for Compliance Assessment of Wireless Communication Technologies Operating above 6 GHz
Kensuke Sasaki; Kun Li; Jerdvisanop Chakarothai; Takahiro Iyama; Teruo Onishi; Soichi Watanabe
2nd URSI Atlantic Radio Science Conference (2018 URSI AT-RASC), May 2018, Peer-reviwed
International conference proceedings - A Waffle-Iron Ridge Guide with Combined Fast- and Slow-Wave Modes for Array Antenna Applications
Hideki KIRINO; Kazuhiro HONDA; Kun LI; Koichi OGAWA
IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers (IEICE), E101.B, 2, 349-356, Feb. 2018, Peer-reviwed,A new Waffle-iron Ridge Guide (WRG) structure that has the ability to control both wavelength and impedance is proposed. With the proposed structure, not only can the wavelength be controlled over a wide range for both fast- and slow-waves in free space but the impedance can also be controlled. These features can improve the performance of array antennas in terms of reducing grating lobes and side lobes. In this paper, we discuss and evaluate a design scheme using equivalent circuits and EM-simulation.
This paper also discusses how the conductivity and dielectric loss in the WRG affect the total gain of the array antenna.
Scientific journal, English - A Method of Reducing the Internal Interference Noise in Intra-EMC Using Decoupling Techniques
MAEKAWA Tomoya; HODNA Kazuhiro; LI Kun; OGAWA Koichi
電子情報通信学会論文誌, J100-B, 8, 575-579, Aug. 2017, Peer-reviwed, This paper presents a novel design technique to reduce the electromagnetic coupling between an antenna and a noise source for intra-EMC in digital wireless equipment. The effectiveness of the proposed method has been verified using a test element group (TEG) to simulate a portable telephone. We have confirmed that it is possible to reduce the electromagnetic coupling by adding the decoupling circuit.
Scientific journal, Japanese - A phase shifter using waffle-iron ridge guides and its application to a beam steering antenna
Hideki Kirino; Kazuhiro Honda; Kun Li; Koichi Ogawa
IEICE Communications Express, Institute of Electronics, Information and Communications Engineers (IEICE), 6, 5, 188-193, May 2017, Peer-reviwed,A mechanical linear sliding phase shifter using waffle-iron ridge guides (WRG) and its application to a beam steering antenna are shown. The structure of the new phase shifter is simpler than we have presented previously in that the number of metal layers has been reduced. Another advantage of the new phase shifter is that with it simple beam steering antennas can be realized. This paper explains the principle and the characteristics of the phase shifter and gives an example of a beam steering antenna.
Scientific journal, English - Regression-Based Channel Capacity for the Evaluation of 2×2 MIMO Antennas
Kazuhiro HONDA; Takeshi KITAMURA; Kun LI; Koichi OGAWA
IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers ({IEICE}), E100.B, 2, 323-335, Feb. 2017, Peer-reviwed, A simple but efficient method for evaluating the channel capacity of 2 x 2 multiple-input multiple-output (MIMO) antenna systems is proposed. First, the channel capacity of a half-wavelength dipole array antenna is calculated using the Monte Carlo method by changing the incident-wave signal-to-noise power ratio, the power difference between two elements, and the correlation coefficient. Using the calculated results, a polynomial function is derived by multivariate regression analysis to estimate the channel capacity. The validity of the developed function is confirmed by comparing the channel capacity estimated by the developed function with that calculated by the Monte Carlo method using a MIMO array antenna operated under various scenarios, including antenna-human body electromagnetic interactions and radio-wave propagation environments, for future MIMO systems. The function is also validated by means of two experimental approaches: the use of radiation patterns measured in an anechoic chamber and the use of a spatial fading emulator that can create a two-dimensional fading environment.
Scientific journal, English - Wavelength Analysis Using Equivalent Circuits in a Fast and Slow Wave Waffle-Iron Ridge Guide
Hideki KIRINO; Kazuhiro HONDA; Kun LI; Koichi OGAWA
IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers ({IEICE}), E100.B, 2, 219-226, Feb. 2017, Peer-reviwed, In this paper we use equivalent circuits to analyze the wavelengths in a Fast and Slow wave Waffle-iron Ridge Guide (FS-WRG). An equivalent circuit for the transverse direction is employed and the transverse resonance method is used to determine the fast wave wavelength. Another equivalent circuit, for the inserted series reactance in the waveguide, is employed for the fast and slow wave wavelength. We also discuss the physical system that determines the wavelengths and the accuracy of this analysis by comparing the wavelengths with those calculated by EM-simulation. Furthermore, we demonstrate use of the results obtained in designing an array antenna.
Scientific journal, English - Three-dimensional MIMO-OTA calibration to achieve the Gaussian angular power spectra in elevation
Kazuhiro Honda; Kun Li
IEICE Communications Express, Institute of Electronics, Information and Communications Engineers ({IEICE}), 5, 10, 394-400, Oct. 2016, Peer-reviwed,This paper presents a calibration method for measuring the channel capacity using a three-dimensional multiple-input multiple-output (MIMO) Over-The-Air (OTA) apparatus. The reference level is calibrated to establish the Gaussian angular power spectra in elevation in consideration of various power losses that exist in the fading emulator. The measured results of MIMO channel capacity agree well with the analytical outcomes calculated by Monte Carlo simulation, demonstrating that the proposed calibration method gives a high degree of accuracy for measuring the channel capacity using the three-dimensional MIMO-OTA apparatus.
Scientific journal, English - A method of controlling the base station correlation for MIMO-OTA based on Jakes model
Kazuhiro Honda; Kun Li
IEICE Communications Express, Institute of Electronics, Information and Communications Engineers ({IEICE}), 5, 9, 297-302, Sep. 2016, Peer-reviwed,This paper presents a methodology of controlling the spatial correlation of BS (base station) antenna realized by a bilateral fading emulator for MIMO-OTA (Over-The-Air) testing. On the basis of Jakes theory, the base station correlation is controlled by setting the initial phases of scatterers in a two-dimensional fading emulator. The experimental results show that the designed correlation coefficient of an uplink channel using the proposed method agrees well with the theoretical value. Further, it is confirmed that the channel capacity of uplink channel can be controlled when the base station and mobile terminal correlations are changed simultaneously.
Scientific journal, English - High efficiency mw-band dielectric resonator rectenna using distributed capacitors
Kazuhiro Honda; Tomohiro Yamashita; Kun Li
IEICE Communications Express, Institute of Electronics, Information and Communications Engineers ({IEICE}), 5, 8, 254-259, Aug. 2016, Peer-reviwed
Scientific journal, English - 歩行動作を考慮した人体近傍交差偏波電力比の解析
李鯤; 本田和博; 小川晃一
Lead, 電子情報通信学会論文誌, J99-B, 7, 544-547, Jul. 2016, Peer-reviwed
Scientific journal, Japanese - Weighted-polarization wearable antenna for on-body dynamic channels
Kun Li; Kazuhiro Honda; Koichi Ogawa
Lead, IEICE Communications Express, Institute of Electronics, Information and Communications Engineers ({IEICE}), 5, 6, 189-194, Jun. 2016, Peer-reviwed, This paper presents a weighted-polarization antenna applied to BAN (Body Area Network) on-body communication systems. A primal objective is to achieve the radio link enhancement in both downlink and uplink on-body channels. The proposed antenna obtains an optimum signal level using a weight function considering the BP-XPR (Body Proximity Cross-Polarization Power Ratio) and antenna tilt angle. The results show that the proposed antenna achieved more than a 3-dB improvement of received signal compared with the other types of antennas, such as vertical dipole, horizontal dipole and equal weight combined antennas, regardless of the arm-swing motion and antenna placement, which verifies the effectiveness of the proposed method to enhance BAN on-body radio links.
Scientific journal, English - Proposal of Decoupling Technique for Intra-EMC
Tomoya Maekawa; Kun Li; Kazuhiro Honda; Koichi Ogawa
2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC), 702-702, May 2016, Peer-reviwed
International conference proceedings - Bit-error-rate OTA testing of BAN antennas based on shadowing-fading hybrid effects
Kun Li; Keisuke Murata; Kazuhiro Honda; Koichi Ogawa
2016 10th International Symposium on Medical Information and Communication Technology (ISMICT), IEEE, 56-60, Mar. 2016, Peer-reviwed
International conference proceedings - Three-Dimensional Over-The-Air Assessment for Vertically Arranged MIMO Array Antennas
Kun LI; Kazuhiro HONDA; Koichi OGAWA
Lead, IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers ({IEICE}), E99.B, 1, 167-176, Jan. 2016, Peer-reviwed, This paper presents a new methodology of the over-the-air (OTA) assessment for vertically arranged multiple-input multiple-output (MIMO) array antennas. Particular emphasis is placed on how well handset MIMO antennas with a vertically arranged structure are characterized using the limited number of scatterers implemented in a fading emulator. First we studied the mechanism of the arrangement of scatterers on the variation of channel responses using a proposed three-dimensional analytical model. It is shown that the condition of a 3D-OTA with the prescribed parameters allows the correlation to be reduced, which permits the channel capacity to increase in the same manner that sufficient scatterers are distributed over the entire solid angle. Then the appropriate scatterers arrangement for a 3D-OTA instrument considering the number of DUT antenna elements and multipath characteristics is investigated. The analytical results show that a suitable scatterers arrangement can be determined for various conditions of multipath environments and numbers of array elements, and that the arrangement can be employed for designing an actual 3D-OTA apparatus.
Scientific journal, English - Weighted-Polarization Wearable MIMO Antenna with Three Orthogonally Arranged Dipoles Based on RF Signal Processing
Kazuhiro HONDA; Kun LI; Koichi OGAWA
IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers ({IEICE}), E99.B, 1, 58-68, Jan. 2016, Peer-reviwed, In this paper, we present a weighted-polarization wearable multiple-input multiple-output (MIMO) antenna that is based on radio-frequency (RF) signal processing to realize ultra-high-speed and high-capacity mobile communications. The proposed antenna is comprised of three orthogonal dipoles, two of which can be selected according to a weight function in different usage scenarios. The weight function is determined by considering the variation in the cross-polarization power ratio (XPR) and the antenna inclination angle which depend on the radio-propagation environment and human motion. To confirm the suitability of the proposed antenna, we perform preliminary experiments to evaluate the channel capacity of a weighted-polarization wearable MIMO antenna with an arm-swinging dynamic phantom. The measured and analytical results are in good agreement, which verifies the effectiveness of the proposed antenna. We demonstrate that the proposed antenna is suitable for realizing gigabit mobile communications in future wearable MIMO applications.
Scientific journal, English - A simultaneous conjugate-matching algorithm for N-element array antennas
Kazuhiro Honda; Kazuki Kaga; Kun Li; Koichi Ogawa
IEICE Communications Express, Institute of Electronics, Information and Communications Engineers ({IEICE}), 4, 11, 327-332, Nov. 2015, Peer-reviwed, This paper presents an automatic impedance-matching algorithm that can sequentially realize a simultaneous conjugate-matching state for all the elements in an N-element array antenna. The analytical results show that the converged solution obtained from the proposed algorithm agrees well with the solution calculated by the analytical deterministic equation, confirming the validity of the proposed method. The method can be applied to MIMO array antennas.
Scientific journal, English - Analysis of the Body Proximity Cross-Polarization Power Ratio in a human walking motion
Kun Li; Kazuhiro Honda; Koichi Ogawa
2015 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM), IEEE, 1-2, Nov. 2015, Peer-reviwed
International conference proceedings - A polarization-controlled MIMO antenna with an optimum phase shift in accordance with various use scenarios
Kazuhiro Honda; Toshihiko Kabeya; Kento Karitani; Kun Li; Koichi Ogawa; Yoshio Koyanagi; Hiroshi Sato; Ritsu Miura
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, 1234-1235, Jul. 2015, Peer-reviwed
International conference proceedings - Disk-loaded monopole stacked with patch antenna
Kohei Omote; Hiroshi Sato; Kun Li; Kazuhiro Honda; Yoshio Koyanagi; Koichi Ogawa
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, 709-710, Jul. 2015, Peer-reviwed
International conference proceedings - Dual-polarized turn-style patch antenna for wearable applications
Kun Li; Yuta Ishisaka; Kazuhiro Honda; Koichi Ogawa
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, 641-642, Jul. 2015, Peer-reviwed
International conference proceedings - A base station correlation-controlled bilateral emulator for MIMO-OTA
Kazuhiro Honda; Toshihiko Kabeya; Kento Karitani; Kun Li; Koichi Ogawa; Yoshio Koyanagi; Hiroshi Sato; Ritsu Miura
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, IEEE, 294-295, Jul. 2015, Peer-reviwed
International conference proceedings - Rice Channel Realization for BAN Over-The-Air Testing Using a Fading Emulator with an Arm-Swinging Dynamic Phantom
Kun LI; Kazuhiro HONDA; Koichi OGAWA
Lead, IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers ({IEICE}), E98.B, 4, 543-553, Apr. 2015, Peer-reviwed, This paper presents a new methodology for realizing a Rice channel in BAN Over-The-Air (OTA) testing using a fading emulator with a dynamic phantom. For the proposed apparatus to be effective, the fading emulator must be provided with an appropriate K-factor that represents the actual propagation environment indoors. Further, an implementation of the Rice channel to the proposed fading emulator in a BAN situation is presented. Thereafter, a calibration method for the fading emulator to adjust the actual K-factor of the on-body Rice channel is advanced. This calibration method is validated by analyzing the variations in the instantaneous K-factor attributed to the arm-swinging motion. Finally, an experiment is conducted for a continuous human walking motion with the fading emulator using an arm-swinging dynamic phantom. The results show that the developed fading emulator allows BAN-OTA testing to replicate the actual Rice channel propagation environment with the consideration of the dynamic characteristics of human walking motion.
Scientific journal, English - Experiments of a polarization-controlled active antenna to enhance BAN on-body link in human dynamic channels
Kun Li; Kazuhiro Honda; Koichi Ogawa
2015 9th International Symposium on Medical Information and Communication Technology (ISMICT), IEEE, 117-120, Mar. 2015, Peer-reviwed
International conference proceedings - Channel Capacity Experiment of a Polarization Controlled MIMO Antenna for Wearable Applications
Kun Li; Kazuhiro Honda; Koichi Ogawa
IEEE Progress in Electromagnetic Research Symposium Proceedings (PIERS 2014), 2139-2143, Aug. 2014, Peer-reviwed
International conference proceedings - A sequential automatic impedance-matching algorithm to achieve simultaneous complex-conjugate condition in multi-element antennas
Kazuki Kaga; Kun Li; Kazuhiro Honda; Koichi Ogawa
2014 IEEE International Workshop on Electromagnetics (iWEM), IEEE, 24-25, Aug. 2014, Peer-reviwed
International conference proceedings - BAN Over-the-Air testing using an arm-swinging dynamic phantom
Koichi Ogawa; Kun Li; Kazuhiro Honda
2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), IEEE, 1-3, Dec. 2013, Peer-reviwed, Invited
International conference proceedings - K-factor Dependent Multipath Characterization for BAN-OTA Testing Using a Fading Emulator
2013 Antennas and Propagation (ISAP 2013), 580-583, Oct. 2013, Peer-reviwed - Impact of the Human Walking Motion on BAN Diversity Effects
Kazuhiro Honda; Kun Li; Koichi Ogawa
2013 URSI International Symposium on Electromagnetic Theory (URSI-EMTS 2013), 1136-1139, Jul. 2013, Peer-reviwed
International conference proceedings - Shadowing-fading BER characterization of BAN antennas based on realistic walking models
KunLi; Kazuhiro Honda; Koichi Ogawa
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT), IEEE, 183-187, Mar. 2013, Peer-reviwed
International conference proceedings - Shadowing-Fading BER Characterization of a BAN Diversity Antenna Based on Statistical Measurements of the Human Walking Motion
Kazuhiro HONDA; Kun LI; Koichi OGAWA
IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers ({IEICE}), E96.B, 10, 2530-2541, 2013, Peer-reviwed, This paper presents the shadowing analysis of a body area network (BAN) diversity antenna based on the statistical measurements of the human walking motion. First, the dynamic characteristics of the armswing motion were measured using human subjects, and a statistical analysis was then carried out using the measured data to extract useful information for the analysis of a BAN diversity antenna. Second, the analytical results of the shadowing effects of the BAN antenna were shown based on the statistical data of the swing motion. The difference between the typical and the realistic arm-swinging models significantly affected the bit error rate (BER) characteristic of the BAN antenna. To eliminate the shadowing caused by the movement of the arms, a BAN diversity antenna was used. Particular emphasis was placed on the evaluation of the spatial separation of the diversity antennas to attain reduction of the signal-to-noise ratio (SNR) required to achieve a specific BER performance, considering the combined outcome of shadowing and multipath fading unique to BAN antenna systems. We determined that an antenna angle separation of greater than 80° is required to reduce the shadowing effects when the diversity antenna is mounted at the left waist in a symmetrical configuration. Further, an antenna angle separation of 120° is required when the diversity antenna is mounted in an asymmetric configuration. Copyright © 2013 The Institute of Electronics, Information and Communication Engineers.
Scientific journal, English
MISC
- 複数箇所に対するミリ波局所ばく露の温熱生理反応調査を目的とした60GHz空間合成ばく露装置の開発—Development of a 60GHz Spatial Synthesis Exposure System for Investigating the Thermal Physiological Responses to Millimeter-Wave Localized Exposure at Multiple Points—電磁環境 半導体電力変換合同研究会・半導体電力変換,EMC一般
敦賀 桜; 日景 隆; 増田 宏; 石竹 達也; Kun Li; 永井 亜希子
東京 : 電気学会, 28 Jun. 2024, 電気学会研究会資料. SPC = The papers of technical meeting on semiconductor power converter, IEE Japan / 半導体電力変換研究会 [編], 2024, 124-139・141-144, 41-44, Japanese - 複数箇所に対するミリ波局所ばく露の温熱生理反応調査を目的とした60GHz空間合成ばく露装置の開発—Development of a 60GHz Spatial Synthesis Exposure System for Investigating the Thermal Physiological Responses to Millimeter-Wave Localized Exposure at Multiple Points—電磁環境 半導体電力変換合同研究会 半導体電力変換,EMC一般
敦賀 桜; 日景 隆; 増田 宏; 石竹 達也; Kun Li; 永井 亜希子
東京 : 電気学会, 28 Jun. 2024, 電気学会研究会資料. EMC = The papers of technical meeting on electromagnetic compatibility, IEE Japan, 2024, 5-20・22-25, 41-44, Japanese - Development of a 60GHz Spatial Synthesis Exposure System for Investigating the Thermal Physiological Responses to Millimeter-Wave Localized Exposure at Multiple Points
敦賀桜; 日景隆; 増田宏; 石竹達也; LI Kun; 永井亜希子
2024, 電子情報通信学会技術研究報告(Web), 124, 92(EMCJ2024 7-21), 2432-6380, 202402261599665849 - 60 GHz Spatial Synthetic High-Localized Exposure System for Investigating Relevance of Millimeter-Wave Localized Exposure at Multiple Points to Thermal-Physiology
敦賀桜; 日景隆; 増田宏; 石竹達也; LI Kun; 永井亜希子
2024, 電子情報通信学会技術研究報告(Web), 124, 114(EMCJ2024 22-31), 2432-6380, 202402282527970970 - Performance Evaluation of 60 GHz Exposure Set-up for Study of Changes in Thermal Physiology and Cellular Mechanisms Induced by Localized Millimeter-wave Exposure
山本康平; 日景隆; 増田宏; 石竹達也; LI Kun; 永井亜希子
2023, 電子情報通信学会技術研究報告(Web), 122, 372(EMCJ2022 72-91), 2432-6380, 202302281759885010 - Characteristics Estimation of 60 GHz Exposure Equipment for Investigation of Effects of Local Exposure to Millimeter-waves on Thermal Physiology and Cellular Functions
杉村海渡; 敦賀桜; 日景隆; 増田宏; 石竹達也; LI Kun; 永井亜希子
2023, 電子情報通信学会技術研究報告(Web), 123, 10(EMCJ2023 1-5), 2432-6380, 202302230616801246 - Power delay characteristics of UWB incoming wave signal in human vicinity by FDTD analysis
LI Kun; CHAKAROTHAI Jerdvisanop; 藤井勝巳
2020, 電子情報通信学会大会講演論文集(CD-ROM), 2020, 1349-144X, 202102249216044137
Books and other publications
Lectures, oral presentations, etc.
- 大型MIMOアンテナのOTA評価方法の実験的検証
本田 和博; 鯤
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Nov. 2024 - Designing Spectrum Database for the Radio Environment Recognition in Tunneling Construction
Shota Yamada; Takeo Fujii; Kun Li
Oral presentation, 電子情報通信学会・スマート無線研究会
Nov. 2024 - ミリ波局所ばく露が温熱生理および細胞機構へ与える影響調査を目的とした60GHz空間合成型ばく露装置の特性評価
杉村海渡; 敦賀桜; 日景隆; 増田宏; Kun Li; 永井亜希子
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Jul. 2024 - 複数箇所に対するミリ波局所ばく露の温熱生理反応調査を目的とした60GHz空間合成ばく露装置の開発
杉村海渡; 敦賀桜; 日景隆; 増田宏; 石竹達也; Kun Li; 永井亜希子
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Jun. 2024 - 上り回線のMIMO伝送容量を用いた局所SARの推定
木本圭拓; 本田和博; 李鯤
Oral presentation, 電子情報通信学会2024年全国大会
Mar. 2024 - 3軸偏波制御アンテナの位相シフト最適化
大坂 隼輝; 本田和博; 李鯤
Oral presentation, 電子情報通信学会2024年全国大会
Mar. 2024 - Method of Power Density and Temperature Elevation Analysis for Skin Exposure to Electromagnetic Fields above 6 GHz
Kun Li
Invited oral presentation, The 31st International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2023), Invited
Sep. 2023 - ミリ波局所ばく露による温熱生理および細胞機構への影響の調査を目的とした60GHz空間合成型ばく露装置の特性解析
杉村海渡; 敦賀桜; 日景隆; 増田宏; 石竹達也; Kun Li; 永井亜希子
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Jun. 2023 - ミリ波局所ばく露が温熱生理や細胞機能にもたらす影響に関する調査を目的とした60 GHzばく露装置の特性解析
杉村海渡; 敦賀桜; 日景隆; 増田宏; 石竹達也; Kun Li; 永井亜希子
電子情報通信学会・環境電磁工学研究会
Apr. 2023 - ミリ波局所ばく露による温熱生理および細胞機構の変化に関する研究に向けた60GHzばく露装置の特性評価
山本康平; 日景隆; 増田宏; 石竹達也; Kun Li; 永井亜希子
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Jan. 2023 - 多変量回帰法を用いたミリ波ばく露による温度上昇の推定
李 鯤
電子情報通信学会・環境電磁工学研究会
Mar. 2022 - クラスター伝搬環境におけるアンテナ傾き角を考慮した3軸偏波制御アンテナの重み関数
本田和博; 関野湧斗; 李鯤
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Nov. 2021 - 5G Sub-6GHzアンテナの局所SARとMIMO伝送特性の相関に関する基礎検討
李鯤; 本田和博
電子情報通信学会2021年ソサイエティ大会
Sep. 2021 - 屋内環境下In-Body無線におけるライスファクターの測定
岡龍駿,李鯤; 本田和博
電子情報通信学会2021年ソサイエティ大会
Sep. 2021 - クラスター伝搬環境における3 軸偏波制御アンテナの重み関数
本田和博; 関野湧斗; 李鯤
電子情報通信学会2021年ソサイエティ大会
Sep. 2021 - 屋内環境における28GHz電波ばく露による全身平均SARの レイトレーシング法を用いた評価法に関する基礎検討
市川智照; 佐々木謙介; 李鯤; 和氣加奈子; 須賀良介; 橋本修
電子情報通信学会2021年総合大会
Mar. 2021 - MIMOチャネル容量を用いた5G端末アンテナ局所SARの推定
李 鯤, 本田和博
電子情報通信学会・ヘルスケア・医療情報通信技術研究会
Nov. 2020 - FDTD法を用いた人体近傍UWB信号の到来波電力遅延特性解析
李 鯤; チャカロタイ ジェドヴィスノプ; 藤井 勝巳
電子情報通信学会2020年ソサイエティ大会
Sep. 2020 - Measurement Condition of Power Density Assessment using a Near-Field Reconstruction Technique in Compliance Test of 5G Mobile Antennas
Kun Li; Kensuke Sasaki; Soichi Watanabe; Kanako Wake
Oral presentation, 電子情報通信学会2019年ソサイエティ大会
Sep. 2019 - Validations on SAR estimations of Multi-Antenna Transmitters in Non-homogeneous Models
Dinh Thanh Le; Kun Li; Tomoaki Nagaoka; Soichi Watababe
Oral presentation, 電子情報通信学会2019年ソサイエティ大会
Sep. 2019 - Monte Carlo Simulation of Temperature Elevation due to Electromagnetic Waves Exposure using a Multi-Layer Human Skin Model with Oblique Incidence Angles at Millimeter-Wave Frequencies
K. Li, K. Sasaki, S. Watanabe, K. Wake, and H. Shirai
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Apr. 2019 - 散乱電界計測に基づく人体を透過する電力密度の測定方法に関する基礎的な検討
松本涼,李鯤,佐々木謙介,渡辺聡一,和氣加奈子,須賀良介,橋本修
Oral presentation, 電子情報通信学会2019年総合大会
Mar. 2019 - A K-Order Model: Novel SAR Evaluation with Low Estimation Errors for Multiple-Antenna Transmitters
D. T. Le, K. Li, and S. Watanabe
Oral presentation, 電子情報通信学会2019年総合大会
Mar. 2019 - A New Technique in Point-Based Estimations to Determine the Maximum Specific Absorption Rate of Multiple-Antenna Transmitters Using Vector
D. T. Le, K. Li, and S. Watanabe
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Feb. 2019 - A Study of Power Density in Human Body Evaluated by Temperature Experiment in Millimeter Wave Band
K. Li, K. Kawabata, K. Sasaki, R. Suga, S. Watanabe, and O. Hashimoto
Oral presentation, 電子情報通信学会・ヘルスケア・医療情報通信技術研究会
May 2018 - Theoretical Analysis of Human Exposure to Electromagnetic Waves from 6 GHz to 1 THz
K. Li, K. Sasaki, and S. Watanabe
Oral presentation, URSI-K第10回医用生体電磁気学シンポジウム
Mar. 2018 - OTA Testing for Medical ICT Antennas -- Implementation on Dynamic BAN Channel
K. Li, K. Honda, K. Sasaki, S. Watanabe, and K. Ogawa
Oral presentation, 電子情報通信学会・ヘルスケア・医療情報通信技術研究会, Invited
Jan. 2018 - Assessment of Temperature Elevation in Millimeter Wave Exposure at Oblique Incident into the Skin
K. Li, K. Sasaki, and S. Watanabe
Oral presentation, 電子情報通信学会環境電磁工学研究会
Dec. 2017 - 60 GHz電波ばく露によるファントムの表面温度上昇評価に関する検討
川畑拳吾,李鯤,佐々木謙介,須賀良介,渡辺聡一,橋本修
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Dec. 2017 - スロットアンテナを用いた3次元OTA装置内の到来波XPR精度改善
岩本大史,本田和博,李鯤,小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Apr. 2017 - Analysis of Wearable MIMO Antenna with Random-Directional Human Movement in Street Microcell Environment
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2017年総合大会
Mar. 2017 - バイラテラルOTA装置への基地局アンテナ4×4相関行列の実装方法
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2017年総合大会
Mar. 2017 - スロットアンテナを用いた3D-OTA装置の散乱体反射波軽減対策
岩本大史, 李鯤,本田和博,小川晃一
Oral presentation, 電子情報通信学会2017年総合大会
Mar. 2017 - 床反射を考慮したOn-Body動的チャンネルにおける受信電力解析
武林龍太,本田和博,李鯤,小川晃一
Oral presentation, 電子情報通信学会2017年総合大会
Mar. 2017 - バイラテラルOTAのための基地局MIMOアンテナ4×4相関行列の実装方法
本田和博,李鯤,小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Feb. 2017 - 歩行動作の統計データを用いたOn-Body通信における受信電力解析
本田和博,李鯤,武林龍太,小川晃一
Oral presentation, 電子情報通信学会・ヘルスケア・医療情報通信技術研究会
Jan. 2017 - High Reliable Wireless Biosensor for Advanced Medical ICT in Aging Society
K. Li
Poster presentation, English, The 13th IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers
Dec. 2016 - 2素子スタブ装荷並設ダイポールアレーアンテナの特性測定
表航平, 李鯤, 本田和博, 小川晃一
Oral presentation, 平成28年度電気関係学会北陸支部連合大会
Sep. 2016 - 偏波制御アンテナとして用いるパッチ付き円板装荷モノポールアンテナの位相シフト量の検討
恒吉優次, 表航平, 李鯤, 本田和博, 小川晃一
Oral presentation, 平成28年度電気関係学会北陸支部連合大会
Sep. 2016 - BANダイバーシチアンテナのOTA測定によるビット誤り率性能評価
村田圭丞, 李鯤, 本田和博, 小川晃一
Oral presentation, 平成28年度電気関係学会北陸支部連合大会
Sep. 2016 - OTA Assessment of BAN Diversity Antenna Using a Bias Switch
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Aug. 2016 - 減結合技術によるイントラEMC内部干渉ノイズ低減法
前川智哉,本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会・環境電磁工学研究会
Jul. 2016 - OTA Assessment for BAN Diversity Antennas in Human Dynamic Channel
K. Li, K. Honda, and K. Ogawa
電子情報通信学会・ヘルスケア・医療情報通信技術研究会
Jul. 2016 - 腕振り電磁ファントムを用いた偏波制御BANアンテナのビット誤り率Over-The-Air測定
本田和博, 村田圭丞, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 日本生体医工学会大会
Apr. 2016 - 偏波制御MIMOアンテナを用いたスループットOTA評価
狩谷健登, 壁谷俊彦, 李鯤, 本田和博, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - 3次元MIMO-OTA装置のキャリブレーション方法
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - A Method of Realizing Gaussian Elevation Distribution for 3D-OTA
K. Li, T. Kabeya, K. Karitani, K. Honda, K. Ogawa, Y. Koyanagi, H. Sato, and R. Miura
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - パッチ付き円板装荷モノポールアンテナのMIMO伝送容量測定
表航平, 佐藤浩, 李鯤, 本田和博, 小柳芳雄, 小川晃一
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - 減結合技術によるイントラEMC内部干渉ノイズ低減法
前川智哉, 李鯤, 本田和博, 小川晃一
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - 腕振りファントムを用いた偏波制御BANアンテナのBER-OTA測定法
本田和博,李鯤,村田圭丞,小川 晃一
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - Bit-Error-Rate OTA Testing of BAN Antennas Based on Shadowing-Fading Hybrid Effects
K. Li, K. Murata, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2016年総合大会
Mar. 2016 - 3次元MIMO-OTA評価装置を用いたMIMO伝送容量を測定するためのキャリブレーション方法
本田和博, 表航平,壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Mar. 2016 - 3次元エミュレータを用いた仰角方向ガウス分布の実現方法
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Feb. 2016 - Bit-Error-Rate OTA Testing of BAN Antennas Based on Shadowing-Fading Hybrid Effects
K. Li, K. Murata, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会・ヘルスケア・医療情報通信技術研究会
Jan. 2016 - 減結合・直交偏波を実現するスタブ装荷並設ダイポールアレー
表航平, 佐藤浩, 李鯤, 本田和博, 小柳芳雄, 小川晃一
Oral presentation, 平成27年度電気関係学会北陸支部連合大会
Sep. 2015 - 直交偏波指向性を形成する減結合スタブ装荷並設ダイポールアレー
表航平, 佐藤浩, 李鯤, 本田和博, 小柳芳雄, 小川晃一
Oral presentation, 電子情報通信学会2015年ソサイエティ大会
Sep. 2015 - プリント基板に構成したパッチ付き円板装荷3軸偏波アンテナ
佐藤浩, 表航平, 李鯤, 本田和博, 小柳芳雄, 小川晃一
Oral presentation, 電子情報通信学会2015年ソサイエティ大会
Sep. 2015 - MIMO-OTAにおける4×4MIMO基地局相関の制御方法
本田和博, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2015年ソサイエティ大会
Sep. 2015 - ユースシーンに応じた最適位相シフト量を実現した偏波制御MIMOアンテナの伝送容量OTA測定
本田和博, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2015年ソサイエティ大会
Sep. 2015 - Analysis of the Body Proximity Cross-Polarization Power Ratio in a Human Walking Motion
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2015年ソサイエティ大会
Sep. 2015 - 商用LTEスマートフォン2×2 MIMOアンテナのOTA測定によるスループット変動メカニズム考察
狩谷健登, 李鯤, 本田和博, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 平成27年度電気関係学会北陸支部連合大会
Sep. 2015 - An Analysis of the Body Proximity Cross-Polarization Power Ratio in a Human Walking Motion
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Aug. 2015 - 直交偏波指向性を形成する減結合スタブ装荷並設ダイポールアレー
表航平, 佐藤浩, 本田和博, 李鯤, 小柳芳雄, 小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Aug. 2015 - バイラテラルMIMO-OTA装置を用いた4x4MIMO伝送容量測定
本田和博, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電気学会計測研究会
Jul. 2015 - 腕振りファントムを用いた偏波制御MIMOアンテナの伝送容量測定
狩谷健登, 李鯤, 本田和博, 小川晃一
Oral presentation, 電子情報通信学会2015年総合大会
Mar. 2015 - パッチ付き円板装荷モノポールアンテナ
表航平, 佐藤浩, 李鯤, 本田和博, 小柳芳雄, 小川晃一
Oral presentation, 電子情報通信学会2015年総合大会
Mar. 2015 - 基地局シミュレータを用いたスループット低減量のメカニズム分析
壁谷俊彦, 狩谷健登, 李鯤, 本田和博, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2015年総合大会
Mar. 2015 - MIMO-OTAにおける基地局相関の制御方法
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2015年総合大会
Mar. 2015 - ユースシーンに応じた最適化機能を有した偏波制御MIMOアンテナ
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会2015年総合大会
Mar. 2015 - Dual-Polarized Turn-style Patch Antenna for Wearable Applications
K. Li, Y. Ishisaka, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2015年総合大会
Mar. 2015 - パッチ付き円板装荷モノポールアンテナ
表航平, 佐藤浩, 李鯤, 本田和博, 小柳芳雄, 小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Mar. 2015 - 基地局相関を制御可能としたバイラテラルMIMO OTA装置
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 三浦律
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Feb. 2015 - 4×4 MIMO Channel Capacity Experiment Using Bilateral Emulator for MIMO-OTA
本田和博; 狩谷健登; LI Kun; 小川晃一; 小柳芳雄; 佐藤浩; 三浦律
電気学会計測研究会資料
2015
2015 2015 - Experiments of a Polarization-controlled Antenna to Enhance BAN On-body Link in Human Dynamic Channels
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会・ヘルスケア・医療情報通信技術研究会
Oct. 2014 - A Method of Calibration for BAN Over-The-Air Testing Using a Fading Emulator with a Dynamic Phantom
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2014年ソサイエティ大会
Sep. 2014 - 上り／下り回線を考慮したMIMOアンテナの設計指標の提案
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 上田真司
Oral presentation, 電子情報通信学会2014年ソサイエティ大会
Sep. 2014 - アクティブMIMOアンテナのOTA測定のためのキャリブレーション
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2014年ソサイエティ大会
Sep. 2014 - On-body Polarization-controlled Active Antenna to Enhance Signal Power in Human Dynamic Channels
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2014年ソサイエティ大会
Sep. 2014 - Three-dimensional OTA Design Considerations Based on MIMO Antenna Radiation and Multipath Interactions
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2014年ソサイエティ大会
Sep. 2014 - 上り／下り回線のアンテナ性能総合評価を目的としたバイラテラルMIMO OTA装置
本田和博, 壁谷俊彦, 狩谷健登, 李鯤, 小川晃一, 小柳芳雄, 佐藤浩, 上田真司
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Aug. 2014 - アクティブMIMOアンテナのOTA測定のためのキャリブレーション方法
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Jul. 2014 - 2次元配列MIMOアレーアンテナのOTA評価
小川晃一; 本田和博; 李鯤
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Mar. 2014 - ギガビット伝送を実現する3軸重み付け偏波8×8 MIMOアンテナ
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2014年総合大会
Mar. 2014 - 3軸重み付け偏波MIMOアンテナを用いた端末保持角度に対する伝送容量劣化改善
李鯤, 本田和博, 小川晃一
Oral presentation, 電子情報通信学会2014年総合大会
Mar. 2014 - 2次元配列MIMOアレーアンテナのOTA評価
小川晃一, 本田和博, 李鯤
Oral presentation, 電子情報通信学会2014年総合大会
Mar. 2014 - 3軸重み付け偏波アクティブアンテナによる腕装着時の8×8 MIMO伝送容量解析
本田和博,李鯤,小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Feb. 2014 - BAN-OTA Testing Using a Fading Emulator Considering the Variation of K-factor Due to the Dynamic Characteristics of Human Motion
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Oct. 2013 - K-factor Dependent Multipath Characterization for BAN-OTA Testing Using a Fading Emulator
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2013年ソサイエティ大会
Sep. 2013 - 手首に装着したBANアンテナのBER特性解析
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2013年ソサイエティ大会
Sep. 2013 - 床がBANアンテナの放射指向特性に与える影響解析
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2013年ソサイエティ大会
Sep. 2013 - BAN-OTA Testing Using a Fading Emulator with a Dynamic Phantom
K. Li, K. Honda, and K. Ogawa
Oral presentation, 電子情報通信学会2013年総合大会
May 2013 - 動的ファントムとフェージングエミュレータを用いたBANアンテナのOver-The-Air評価方法
小川晃一,李鯤,本田和博
Oral presentation, 電子情報通信学会・ヘルスケア・医療情報通信技術研究会
May 2013 - BANファントムを用いた屋内伝搬環境下におけるKファクターの測定
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2013年総合大会
Mar. 2013 - 歩行時の動的統計データに基づくBANダイバーシチアンテナのシャドウイング・マルチパス練成解析
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会・アンテナ・伝播研究会
Jan. 2013 - BANアンテナの腕振りによるQPSK信号のBER特性劣化
李鯤, 本田和博, 小川晃一
Oral presentation, 電子情報通信学会2012年ソサイエティ大会
Sep. 2012 - 歩行時の計測統計データに基づいたBANダイバーシチアンテナのBER特性解析
本田和博, 李鯤, 小川晃一
Oral presentation, 電子情報通信学会2012年ソサイエティ大会
Sep. 2012
Courses
- 輪講B（学域・Ｋ課程）
Apr. 2024 - Present
電気通信大学 - 情報通信工学実験B 信号処理
Apr. 2023 - Present
電気通信大学 - 電子機器システム学
Apr. 2023 - Present
電気通信大学 - イノベイティブ総合コミュニケーションデザイン2
Apr. 2023 - Mar. 2024
電気通信大学 - 人工知能・情報通信ゼミナール
Apr. 2022 - Mar. 2023
香川大学 - デジタル無線通信システム
Sep. 2021 - Mar. 2023
香川大学 - 数理演習
Apr. 2021 - Mar. 2023
香川大学 - 基礎数学演習・微積分学
Apr. 2021 - Mar. 2023
香川大学 - 対人コミュニケーション
Apr. 2021 - Mar. 2023
香川大学 - 数学・微積分学
Apr. 2021 - Mar. 2023
香川大学 - 情報通信デザイン演習
Apr. 2020 - Mar. 2023
香川大学 - 物理学実験
Apr. 2020 - Mar. 2023
香川大学 - 特別講義(情報通信ネットワーク概論)
Sep. 2021 - Sep. 2021
香川高等専門学校
