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| Presentation | 2019-11-15 16:15 Fundamental study on optimizing measurement location of electric field strength distribution by sampling theorem Masataka Midori, Tomohiro Honya, Hiroshi Kurihara (TDK)  EMCJ2019-74 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Radiated emissions from electric devices are generally evaluated at a position where the maximum value is obtained in the electric field strength distribution. In order to determine the position where the maximum value is obtained in the electric field strength distribution, the measurement times for a standard radiated emission test are very long. We have studied a high-speed EMI measurement system using sampling frequency conversion as a measurement system that reduces the measurement time yet still maintains accuracy , and reported that the measurement intervals can be reduced to half-wavelength. In this study, in order to further reduce the number of measurement points, we did fundamental study on the optimization of the measurement position based on the sampling theorem. First, the electric field strength distribution measurement position according to the sampling theorem was formulated. Next, in order to feasibility study, the electric field strength distribution radiated from the double rigid horn antenna was measured. We could confirmed that the number of measurement points by the proposed method was greatly reduced to about 5.3% of the half-wavelength interval, and the deviation of the maximum electric field strength between the proposed method and the manual measurement was within +0.02 / -0.16 dB. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Sampling frequency conversion / Upsampling / Sampling theorem / Plane Wave Spectrum / EMI Measurement / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 293, EMCJ2019-74, pp. 17-22, Nov. 2019. | |
| Paper # | EMCJ2019-74 | |
| Date of Issue | 2019-11-08 (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 | EMCJ2019-74 |
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| Conference Information | |
| Committee | EMCJ IEE-SPC |
| Conference Date | 2019-11-15 - 2019-11-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2019-11-EMCJ-SPC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental study on optimizing measurement location of electric field strength distribution by sampling theorem |
| Sub Title (in English) | |
| Keyword(1) | Sampling frequency conversion |
| Keyword(2) | Upsampling |
| Keyword(3) | Sampling theorem |
| Keyword(4) | Plane Wave Spectrum |
| Keyword(5) | EMI Measurement |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masataka Midori |
| 1st Author's Affiliation | TDK Corporation (TDK) |
| 2nd Author's Name | Tomohiro Honya |
| 2nd Author's Affiliation | TDK Corporation (TDK) |
| 3rd Author's Name | Hiroshi Kurihara |
| 3rd Author's Affiliation | TDK Corporation (TDK) |
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| Speaker | Author-1 |
| Date Time | 2019-11-15 16:15:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2019-74 |
| Volume (vol) | vol.119 |
| Number (no) | no.293 |
| Page | pp.17-22 |
| #Pages | 6 |
| Date of Issue | 2019-11-08 (EMCJ) |
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