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| Presentation | 2023-12-08 16:50 Analysis of disturbance transmission using modal equivalent circuits for immunity evaluation of high-speed communication equipment Takumi Kawashima (Kyutech), Kazuya Wakita, Yoshifumi Kaku (DENSO), Tohlu Matushima, Yuki Fukumoto (Kyutech)  EMCJ2023-86 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this report, the electromagnetic noise that enters the communication equipment from the coaxial cable to the in-vehicle communication module is evaluated from the viewpoint of immunity by using a mode conversion equivalent circuit, and the mechanism of mode conversion is clarified. Considering radiated immunity, the applied electromagnetic field induces a common mode in the coaxial cable, which propagates through the cable to the signal line inside the enclosure via the connector. If the signal lines inside the board are microstrip lines, the difference in equilibrium between the two transmission lines causes a conversion from common mode to normal mode. Furthermore, when the difference in equilibria is small, the parasitic inductance between the ground connections at the connectors is dominant in the mode conversion. To evaluate these phenomena, a mode-resolved circuit model with an ideal transformer was created, and circuit simulations were conducted using the model and a modal transmission line. The obtained results showed the same trend as that of the 3D electromagnetic feiled simulation. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | degree of equilibrium / Current distribution rate / Immunity / Ideal transformer / 3D electromagnetic field simulation / Circuit Simulation / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 303, EMCJ2023-86, pp. 29-34, Dec. 2023. | |
| Paper # | EMCJ2023-86 | |
| Date of Issue | 2023-12-01 (EMCJ) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EMCJ2023-86 |
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| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2023-12-08 - 2023-12-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shizuoka University (Hamamatsu) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2023-12-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of disturbance transmission using modal equivalent circuits for immunity evaluation of high-speed communication equipment |
| Sub Title (in English) | |
| Keyword(1) | degree of equilibrium |
| Keyword(2) | Current distribution rate |
| Keyword(3) | Immunity |
| Keyword(4) | Ideal transformer |
| Keyword(5) | 3D electromagnetic field simulation |
| Keyword(6) | Circuit Simulation |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takumi Kawashima |
| 1st Author's Affiliation | Kyusyu Institute of technology (Kyutech) |
| 2nd Author's Name | Kazuya Wakita |
| 2nd Author's Affiliation | DENSO CORPORATION (DENSO) |
| 3rd Author's Name | Yoshifumi Kaku |
| 3rd Author's Affiliation | DENSO CORPORATION (DENSO) |
| 4th Author's Name | Tohlu Matushima |
| 4th Author's Affiliation | Kyusyu Institute of technology (Kyutech) |
| 5th Author's Name | Yuki Fukumoto |
| 5th Author's Affiliation | Kyusyu Institute of technology (Kyutech) |
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| Speaker | Author-1 |
| Date Time | 2023-12-08 16:50:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2023-86 |
| Volume (vol) | vol.123 |
| Number (no) | no.303 |
| Page | pp.29-34 |
| #Pages | 6 |
| Date of Issue | 2023-12-01 (EMCJ) |
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