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Paper Abstract and Keywords
Presentation 2013-10-24 11:45
Evaluation of Wave Absorber using Alumina Ceramics for Far- and Near-field in 90 GHz Band
Naoki Kosugi, Yuya Kawasaki, Ryosuke Suga (Aoyama Gakuin Univ.), Yoshitoshi Maeda, Makoto Uno (WICERA), Osamu Hashimoto (Aoyama Gakuin Univ.) EMCJ2013-66 MW2013-106 EST2013-58
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, the complex permittivity of the carbon-containing alumina was measured by using the lens method in 18-50 GHz, and the permittivity of the alumina at 90 GHz was estimated by extrapolation.
The wave absorber was designed and fabricated at 90 GHz by using the estimated permittivity, and the absorption characteristics were measured in far-field.
Moreover, the absorber was applied to a near-field cap-type wave absorber for use as cover of an active device.
As a result, the absorption of 20dB in far-field and that of 38dB in near-field were confirmed.
Keyword (in Japanese) (See Japanese page) 
(in English) Alumina ceramics / Wave absorber / Far-field / Near-field / Monopole antenna / PML / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 261, EST2013-58, pp. 35-39, Oct. 2013.
Paper # EST2013-58 
Date of Issue 2013-10-17 (EMCJ, MW, EST) 
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 EMCJ2013-66 MW2013-106 EST2013-58

Conference Information
Committee EMCJ IEE-EMC MW EST  
Conference Date 2013-10-24 - 2013-10-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) EMC, Micro wave, Electromagnetic analysis, etc. 
Paper Information
Registration To EST 
Conference Code 2013-10-EMCJ-EMC-MW-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Wave Absorber using Alumina Ceramics for Far- and Near-field in 90 GHz Band 
Sub Title (in English)  
Keyword(1) Alumina ceramics  
Keyword(2) Wave absorber  
Keyword(3) Far-field  
Keyword(4) Near-field  
Keyword(5) Monopole antenna  
Keyword(6) PML  
Keyword(7)  
Keyword(8)  
1st Author's Name Naoki Kosugi  
1st Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
2nd Author's Name Yuya Kawasaki  
2nd Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
3rd Author's Name Ryosuke Suga  
3rd Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
4th Author's Name Yoshitoshi Maeda  
4th Author's Affiliation WICERA Co.,Ltd. (WICERA)
5th Author's Name Makoto Uno  
5th Author's Affiliation WICERA Co.,Ltd. (WICERA)
6th Author's Name Osamu Hashimoto  
6th Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
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Speaker Author-1 
Date Time 2013-10-24 11:45:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EMCJ2013-66, MW2013-106, EST2013-58 
Volume (vol) vol.113 
Number (no) no.259(EMCJ), no.260(MW), no.261(EST) 
Page pp.35-39 
#Pages 5 
Date of Issue 2013-10-17 (EMCJ, MW, EST) 

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