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Paper Abstract and Keywords
Presentation 2011-10-07 10:20
An Analytical Study on Affection of Reflective Object around an Antenna on Near-field/Far-field Region
Takuto Watanabe (Aoyama Gakuin Univ.), Koji Takizawa, Hiroshi Kurihara (TDK Corp.), Osamu Hashimoto (Aoyama Gakuin Univ.) EST2011-71
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, Near-field around a λ/2 dipole antenna, surrounded by a metal frame, was analytically examined, and Far-field radiations were also examined by the method of near-field to far-field transformation, using the analyzed field-data. At first, accuracy of far-field estimation due to near-field sampling, which divides virtual closed surface surrounding an antenna, was examined by only λ/2 dipole antenna, and the convergence of estimation was clarified. Next, Amplitude and phase distributions around a λ/2 dipole antenna surrounded by a metal frame were examined, and far-field radiation characteristics were estimated using the analyzed field-data. As a result, relative differences of estimated values, between with/without metal frames, is within 0.426 dB. Hence the affection on estimation accuracy due to metal frame, surrounding a λ/2 dipole antenna, is a little in this case.
Keyword (in Japanese) (See Japanese page) 
(in English) Near-Field Sampling / Far-field / Amplitude Distribution / Metal Frame / λ/2 Dipole Antenna / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 224, EST2011-71, pp. 39-44, Oct. 2011.
Paper # EST2011-71 
Date of Issue 2011-09-29 (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)
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Conference Information
Committee EST  
Conference Date 2011-10-06 - 2011-10-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki Prefectural Art Museum 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EST 
Conference Code 2011-10-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Analytical Study on Affection of Reflective Object around an Antenna on Near-field/Far-field Region 
Sub Title (in English)  
Keyword(1) Near-Field Sampling  
Keyword(2) Far-field  
Keyword(3) Amplitude Distribution  
Keyword(4) Metal Frame  
Keyword(5) λ/2 Dipole Antenna  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takuto Watanabe  
1st Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
2nd Author's Name Koji Takizawa  
2nd Author's Affiliation TDK Corporation (TDK Corp.)
3rd Author's Name Hiroshi Kurihara  
3rd Author's Affiliation TDK Corporation (TDK Corp.)
4th Author's Name Osamu Hashimoto  
4th Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
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Speaker Author-1 
Date Time 2011-10-07 10:20:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EST2011-71 
Volume (vol) vol.111 
Number (no) no.224 
Page pp.39-44 
#Pages 6 
Date of Issue 2011-09-29 (EST) 

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