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| Presentation | 2011-04-22 13:55 Applicability of an anechoic chamber as test site below 30MHz Masamitsu Tokuda, Hiroyuki Ohsaki (Univ. of Tokyo), Hiroharu Yamashita, Masahiro Inoue (JET), Mariko Tomisawa, Ryosuke Hasegawa (TCU)  EMCJ2011-3 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Performance of an anechoic chamber is assured on the frequency region above 30MHz, but it is unclear on the frequency region below 30MHz. However, in a photovoltaic generation system and a power line communication system, the performance of the anechoic chamber on the frequency region below 30MHz is needed. Therefore, we try to measure the magnetic field property of the anechoic chamber on the frequency region from 150kHz to 30MHz. We also try to calculate the magnetic field property of free space on the ground plane, which has not wall and ceiling such as the anechoic chamber. By comparing with measurement values of magnetic field on the large anechoic chamber (JET: 10m method) and calculation ones by the method of moment (NEC2) on free space on the ground plane in the frequency region from 150kHz to 30MHz, vectorial sum of magnetic field at 3m agreed each other within 3.3dB and that at 10m agreed each other within 4.4dB. Therefore, we can clear to be able to measure magnetic field property in the frequency region from 150kHz to 30MHz, without considering magnetic reflection from wall and ceiling of anechoic chamber. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Electromagnetic anechoic chamber / Magnetic field measurement / loop antenna / Method of moment / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 18, EMCJ2011-3, pp. 13-18, April 2011. | |
| Paper # | EMCJ2011-3 | |
| Date of Issue | 2011-04-15 (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 | EMCJ2011-3 |
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| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2011-04-22 - 2011-04-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of Hyogo |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Countermeasure, EMC, etc. |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2011-04-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Applicability of an anechoic chamber as test site below 30MHz |
| Sub Title (in English) | |
| Keyword(1) | Electromagnetic anechoic chamber |
| Keyword(2) | Magnetic field measurement |
| Keyword(3) | loop antenna |
| Keyword(4) | Method of moment |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masamitsu Tokuda |
| 1st Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 2nd Author's Name | Hiroyuki Ohsaki |
| 2nd Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 3rd Author's Name | Hiroharu Yamashita |
| 3rd Author's Affiliation | Japan Electrical Safety & Environment Technology Laboratories (JET) |
| 4th Author's Name | Masahiro Inoue |
| 4th Author's Affiliation | Japan Electrical Safety & Environment Technology Laboratories (JET) |
| 5th Author's Name | Mariko Tomisawa |
| 5th Author's Affiliation | Tokyo City University (TCU) |
| 6th Author's Name | Ryosuke Hasegawa |
| 6th Author's Affiliation | Tokyo City University (TCU) |
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| Speaker | Author-1 |
| Date Time | 2011-04-22 13:55:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2011-3 |
| Volume (vol) | vol.111 |
| Number (no) | no.18 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2011-04-15 (EMCJ) |
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