| Presentation | 2021-06-11 Electromagnetic field analysis of common mode excitation measurement system in signal connector with incomplete ground connection Shotaro Tanaka, Tohlu Matsushima, Yuki Fukumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Electromagnetic interference (EMI) due to common mode current generated from high-speed digital circuits on printed circuit boards (PCB) and connectors to attach a cable is one EMI issue in board design, and it is necessary to evaluate the superiority or inferiority of connectors. In order to evaluate the superiority or inferiority of a connector, the strength of radiated electric field is generally measured in an anechoic chamber, however it is costly and time consuming. In this report, therefore, the authors propose a simple measuring jig that can evaluate the common mode radiation of the connector without using an anechoic chamber. Using the electromagnetic field simulation, a measuring jig was modelized and the common mode radiation generated from the connector connecting the PCB and the coaxial cable was simulated. When the common mode radiation obtained from the measurement system and the amount of radiated electric field directly obtained from the circuit board were compared, they matched with an maximum error of 1 dB. Therefor it was found that the compatibility between the connector and the cable can be evaluated using the proposed measurement system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Common mode excitation amount / common mode radiation / coaxial cable / S-parameters |
| Paper # | EMCJ2021-12 |
| Date of Issue | 2021-06-04 (EMCJ) |
| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2021/6/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | EMC |
| Chair | Atsuhiro Nishikata(NagTokyo Inst. of Tech.oya Inst. of Tech.) |
| Vice Chair | Kimihiro Tajima(NTT-AT) |
| Secretary | Kimihiro Tajima(HITACHI) |
| Assistant | Hiroyoshi Shida(EMC Tech) / Kiyoto Matsushima(HITACHI) / Tohlu Matsushima(Kyutech) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Electromagnetic field analysis of common mode excitation measurement system in signal connector with incomplete ground connection |
| Sub Title (in English) | |
| Keyword(1) | Common mode excitation amount |
| Keyword(2) | common mode radiation |
| Keyword(3) | coaxial cable |
| Keyword(4) | S-parameters |
| 1st Author's Name | Shotaro Tanaka |
| 1st Author's Affiliation | Kyushu Institute of Technology(kyutech) |
| 2nd Author's Name | Tohlu Matsushima |
| 2nd Author's Affiliation | Kyushu Institute of Technology(kyutech) |
| 3rd Author's Name | Yuki Fukumoto |
| 3rd Author's Affiliation | Kyushu Institute of Technology(kyutech) |
| Date | 2021-06-11 |
| Paper # | EMCJ2021-12 |
| Volume (vol) | vol.121 |
| Number (no) | EMCJ-63 |
| Page | pp.pp.7-12(EMCJ), |
| #Pages | 6 |
| Date of Issue | 2021-06-04 (EMCJ) |