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| Presentation | 2009-11-20 13:30 A theoretical study on design of radar absorbent material for wedge shape Shinya Kitagawa, Yoshinobu Hata, Tatsuo Kida (Ministry of Defense)  EMCJ2009-82 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the general design of Radar Absorbent Material (RAM), its reflection coefficient is calculated with the transmission line theory applied to an infinite plate, and then its permittivity, permeability, and thickness are determined. However, for other objects besides a plate, it is impossible to calculate their reflection coefficient using the transmission line theory. In this report, we calculate the electric fields scattered by the edge coated with the surface impedance and derive the conditions of permittivity to obtain the desired reflection coefficient with the relation between the edge angle and surface impedance. Consequently, we find the fact that the conditions of RAM’s permittivity for a plate and a wedge shape are different from each other and it is necessary to decrease imaginary part of the permittivity for TE wave and increase real part and imaginary part of the permittivity for TM wave. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | radar absorbent material / edge diffraction / surface impedance / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 295, EMCJ2009-82, pp. 19-24, Nov. 2009. | |
| Paper # | EMCJ2009-82 | |
| Date of Issue | 2009-11-13 (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 | EMCJ2009-82 |
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| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2009-11-20 - 2009-11-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Aoyama Gakuin Univ. (Aoyama Campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2009-11-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A theoretical study on design of radar absorbent material for wedge shape |
| Sub Title (in English) | |
| Keyword(1) | radar absorbent material |
| Keyword(2) | edge diffraction |
| Keyword(3) | surface impedance |
| Keyword(4) | |
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| 1st Author's Name | Shinya Kitagawa |
| 1st Author's Affiliation | Technical Research and Development Institute, Ministry of Defense (Ministry of Defense) |
| 2nd Author's Name | Yoshinobu Hata |
| 2nd Author's Affiliation | Technical Research and Development Institute, Ministry of Defense (Ministry of Defense) |
| 3rd Author's Name | Tatsuo Kida |
| 3rd Author's Affiliation | Technical Research and Development Institute, Ministry of Defense (Ministry of Defense) |
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| Speaker | Author-1 |
| Date Time | 2009-11-20 13:30:00 |
| Presentation Time | 25 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2009-82 |
| Volume (vol) | vol.109 |
| Number (no) | no.295 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2009-11-13 (EMCJ) |
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