Faculty Profiles - MATSUSHIMA Tohlu

Papers - MATSUSHIMA Tohlu

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Underwater Live Video Streaming Experiment Using Radio Frequency Communication for AUVs Reviewed

Alahmad R., Nishida Y., Ishii K., Fukumoto Y., Matsushima T.

Proceedings of International Conference on Artificial Life and Robotics 499 - 503 2023.10

Common-mode Current Converted from PLC Signal in Three-phase Distribution Network with Earth Leakage Circuit Breaker Reviewed

Enoki R., Wakisaka T., Matsushima T., Fukumoto Y.

IEEE International Symposium on Electromagnetic Compatibility - EMC Europe 2023-September 2023.09

Analysis of Common-mode Voltage during Switching of Individual IGBTs in Three-phase Inverter Reviewed

Fujimura M., Matsushima T., Fukumoto Y., Takada K., Kobayashi K.

IEEE International Symposium on Electromagnetic Compatibility - EMC Europe 2023-September 2023.09

Simple Comparison Method of Countermeasure Effect for Common Mode Filter on Radiated Emission Considering Conversion from Differential Mode to Common Mode Reviewed

KIKUCHI Koichi, MUNEMOTO Yu, MATSUSHIMA Tohlu, KUWABARA Nobuo, FUKUMOTO Yuki

J106-B ( 8 ) 519 - 526 2023.08

Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

Each mixed-mode S-parameter of CMF has a phase characteristic, the phases are not the same, and the CMFs cannot be simply compared. In this study, as one way to confirm the usefulness of CMFs, we found a formula for equivalent common-mode voltage VEQ and calculated VEQ of each CMF for a square wave. Radiated emission levels were then evaluated by measuring CISPR 25. As a result, it was found that the magnitude relationship is the same as that of the equivalent common mode voltage VEQ.

DOI： 10.14923/transcomj.2022pep0009

CiNii Research

Transmission Characteristic Evaluation of Distribution Board in High-Speed Power Line Communication Reviewed

WAKISAKA Toshiyuki, MATSUSHIMA Tohlu, ENOKI Ryoya, KUWABARA Nobuo, FUKUMOTO Yuki

J106-B ( 8 ) 498 - 508 2023.08

Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

Today, with the increasing demand for IoT, there is a growing demand for high-speed power line communication (PLC) in large-scale facilities such as factories. So far, many studies have been conducted on the transmission characteristics of single-phase power lines in general households. and transmission characteristics including cross-phase communication have not been clarified. Therefore, in this paper, regarding transmission characteristics via distribution boards used in large-scale facilities such as factories, we first examine the signal propagation characteristics of a single breaker, showed that the mode S-parameter value increased. Then, we examined how the number of branches affects communication via distribution boards by measurement and analysis, and showed that in any case, it is close to 1/number of branches. By estimating the transmission characteristics via the distribution board according to the contents of this paper, it is possible to estimate the location where the PLC repeater should be installed.

DOI： 10.14923/transcomj.2022pep0001

CiNii Research

Comparison of Suppression Effect by CMF for UTP and STP Lines Using Chain Parameter Matrix Reviewed

Kuwabara N., Matsushima T., Fukumoto Y.

2023 IEEE Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMC+SIPI 2023 196 - 201 2023.07

Experimental Study of Wavelet-OFDM Radio Communication System for AUVs Under Seawater Reviewed

Hasaba R., Eguchi K., Wakisaka T., Satoh H., Hirokawa J., Hirose M., Matsushima T., Fukumoto Y., Nishida Y., Ishii K.

17th European Conference on Antennas and Propagation, EuCAP 2023 2023.03

海中における伝送特性を用いた Wavelet-OFDM 通信の通信速度推定 Reviewed

元村史龍, 仙波拓人, 桑原堅誠, 脇坂俊幸, 松嶋徹, 福本幸弘

エレクトロニクス実装学術講演大会講演論文集 ( 一般社団法人エレクトロニクス実装学会 ) 37 ( 0 ) 14A5-4 2023.03

On-Chip Power Integrity Simulation Using LSI-Core Macromodels Considering Voltage Fluctuations Caused by Inter-Function-Block Interference Reviewed

Tanaka H., Matsushima T., Yano Y., Wada O.

IEEE Transactions on Electromagnetic Compatibility 65 ( 1 ) 334 - 342 2023.02

Basic Study of Communication System in Seawater Using Magnetic Field Coupler and Wavelet OFDM Reviewed

Hasaba R., Eguchi K., Wakisaka T., Sato H., Hirokawa J., Hirose M., Matsushima T., Fukumoto Y.

Asia-Pacific Microwave Conference Proceedings, APMC 2022-November 488 - 489 2022.11

Electromagnetic Noise Evaluation of Transceiver IC and Communication Modules in CAN-FD Communication Reviewed

Nishida S., Matsushima T., Fukumoto Y.

2022 IEEE CPMT Symposium Japan, ICSJ 2022 76 - 79 2022.11

Circuit analysis of common mode current in coupling coils for HF broadband communication system Reviewed

Matsushima T., Kuwahara K., Fukumoto Y.

2022 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2022 19 - 21 2022.09

Rapid Calculation Method of Three-Dimensional Communication Range in HF Broadband Communication System Reviewed

Kuwahara K., Fukumoto Y., Matsushima T., Wakisaka T.

2022 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2022 106 - 111 2022.08

Analysis of CM-Signal Suppression Effect from DM Signal by Common-Mode Choke Coil Using Chain-Parameter Matrix Reviewed

Kuwabara N., Matsushima T., Fukumoto Y.

2022 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2022 181 - 186 2022.08

Analysis Method of Transmission Characteristics between Coil Antennas for Short-Range Wireless Communication

Wakisaka Toshiyuki, Kuwahara Kensei, Semba Takuto, Matsushima Tohlu, Fukumoto Yuki

Journal of The Japan Institute of Electronics Packaging ( The Japan Institute of Electronics Packaging ) 25 ( 4 ) 309 - 313 2022.07

A Design Method for the Loop Antenna to Control a Range of HF-Broadband Wireless Communication Reviewed

Proceedings of JIEP Annual Meeting ( The Japan Institute of Electronics Packaging ) 36 ( 0 ) 24B5-1 2022.03

Quantitative Evaluation of Reflection Characteristics of Power Distribution Equipment during TDR Measurement Reviewed

Uejima Hiroaki, Matsushima Tohlu, Hisakado Takashi, Wada Osami

IEEJ Transactions on Power and Energy ( The Institute of Electrical Engineers of Japan ) 142 ( 2 ) 139 - 149 2022.02

Language：Japanese Publishing type：Research paper (scientific journal)

<p>The authors propose an effective method of fault location utilizing TDR measurement in overhead distribution systems. Past studies have shown that reflected waves from accident points such as short circuits, ground faults, and disconnections can be observed in overhead distribution systems. In addition, it is known that the retaining insulators and pulling insulators of overhead power distribution line cause reflected wave because these equipment act as capacitor. On the other hand, although there are many other distribution facilities, the reflection characteristics cannot be evaluated quantitatively. Based on the above, the purpose of this study is to create an equivalent circuit model for TDR measurement for various distribution facilities existing in the overhead distribution system. For modeling, an equivalent circuit model is created by the power system instantaneous value analysis program XTAP, and the experimental results and simulation results are compared and evaluated.</p>

DOI： 10.1541/ieejpes.142.139

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CiNii Research

Other Link： https://www.jstage.jst.go.jp/article/ieejpes/142/2/142_139/_pdf

Communication Distance Estimation for Power Line Communication Using Various Differently Constituted Power Cables Reviewed

Fukumoto Y., Oshikawa K., Matsushima T., Kuwabara N., Wakisaka T.

IEEJ Transactions on Electrical and Electronic Engineering 17 ( 4 ) 498 - 505 2021.12

Transmission line pulse method with arbitrary characteristic impedance for immunity evaluation of ESD protection device Reviewed

Tanaka K., Matsushima T., Fukumoto Y.

2021 IEEE CPMT Symposium Japan, ICSJ 2021 21 - 24 2021.12

Circuit analysis of radiation reaction in metamaterials by retarded electromagnetic coupling Reviewed

Nakata R., Hisakado T., Matsushima T., Wada O.

IET Circuits, Devices and Systems 16 ( 4 ) 311 - 321 2021.11

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Papers - MATSUSHIMA Tohlu