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| Presentation | 2011-01-28 14:35 Application of Pyramidal Foam Absorber for Compact Anechoic Chamber above 1 GHz -- Relation between Site VSWR and Time Domain Evaluation -- Masato Kawabata (Fukuoka Industrial Technology Center), Hiroshi Onomae (Kagoshima Prefectural Institute of Industrial Technology), Masakatsu Fujimoto (Yamaguchi Prefectural Industrial Technology Institute), Kenji Ishimatsu (Kumamoto Industrial Research Institute), Yasuhiro Ishida (Fukuoka Industrial Technology Center)  EMCJ2010-113 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | EMI test sites above 1 GHz are modeled as a free space. CISPR has specified the site voltage standing wave ratio (site VSWR) to evaluate the performance of test facilities. Pyramidal form absorbers should be placed in a compact anechoic chamber to reduce the influence of reflection waves from all walls if the chamber is used as an EMI test site above 1 GHz. In this report, we investigate the optimum arrangement of the pyramidal form absorbers in a compact anechoic chamber to be in conformity with CISPR. The ray-trace method and the time domain measurement are used to search passes and levels of the reflection waves from walls. As a result of the relation with site VSWR, the reflection wave levels relative to the direct ones should be less than -22 dB to be in conformity with CISPR. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Compact anechoic chamber / Pyramidal foam absorber / Site VSWR / Time domain evaluation / Ray-trace method / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 402, EMCJ2010-113, pp. 79-84, Jan. 2011. | |
| Paper # | EMCJ2010-113 | |
| Date of Issue | 2011-01-21 (EMCJ) | |
| ISSN | Print edition: ISSN 0913-5685 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 | EMCJ2010-113 |
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| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2011-01-28 - 2011-01-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kumamoto National College of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | EMC, etc. |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2011-01-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Application of Pyramidal Foam Absorber for Compact Anechoic Chamber above 1 GHz |
| Sub Title (in English) | Relation between Site VSWR and Time Domain Evaluation |
| Keyword(1) | Compact anechoic chamber |
| Keyword(2) | Pyramidal foam absorber |
| Keyword(3) | Site VSWR |
| Keyword(4) | Time domain evaluation |
| Keyword(5) | Ray-trace method |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masato Kawabata |
| 1st Author's Affiliation | Fukuoka Industrial Technology Center (Fukuoka Industrial Technology Center) |
| 2nd Author's Name | Hiroshi Onomae |
| 2nd Author's Affiliation | Kagoshima Prefectural Institute of Industrial Technology (Kagoshima Prefectural Institute of Industrial Technology) |
| 3rd Author's Name | Masakatsu Fujimoto |
| 3rd Author's Affiliation | Yamaguchi Prefectural Industrial Technology Institute (Yamaguchi Prefectural Industrial Technology Institute) |
| 4th Author's Name | Kenji Ishimatsu |
| 4th Author's Affiliation | Kumamoto Industrial Research Institute (Kumamoto Industrial Research Institute) |
| 5th Author's Name | Yasuhiro Ishida |
| 5th Author's Affiliation | Fukuoka Industrial Technology Center (Fukuoka Industrial Technology Center) |
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| Speaker | Author-1 |
| Date Time | 2011-01-28 14:35:00 |
| Presentation Time | 20 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2010-113 |
| Volume (vol) | vol.110 |
| Number (no) | no.402 |
| Page | pp.79-84 |
| #Pages | 6 |
| Date of Issue | 2011-01-21 (EMCJ) |
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