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Paper Abstract and Keywords
Presentation 2013-05-10 11:00
Verification of a Calculation Method of Magnetoquasistatic Fields for Short-Range Wireless Identification
Takayuki Ogasawara, Ai-ichiro Sasaki, Hiroki Morimura (NTT) EST2013-2
Abstract (in Japanese) (See Japanese page) 
(in English) We propose the concept of short-range wireless identification where communication area radius is about 50 cm centered on reader/writer. For realizing secure wireless identification systems, the technology to form clearly defined communication areas is required. Our study is focused on localizing magnetoquasistatic fields generated from multiple current loops to form the clearly defined areas. The magnetic-field distribution created by the loops approximately obeys Biot-Savart law. The calculation model can easily be described with widely used programming languages, such as Mathematica. Therefore, it is possible to calculate the field distribution without relying on commercial simulators. In this paper, we present the concept of the short-range wireless identification, principle of magnetic-field localization, mathematical formulation of Biot-Savart law, and experimental demonstration with single and double current loops we fabricated.
Keyword (in Japanese) (See Japanese page) 
(in English) short-range wireless identification / current loop / magnetoquasistatic fields / magnetic moment / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 26, EST2013-2, pp. 5-10, May 2013.
Paper # EST2013-2 
Date of Issue 2013-05-03 (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 EST2013-2

Conference Information
Committee EST  
Conference Date 2013-05-10 - 2013-05-10 
Place (in Japanese) (See Japanese page) 
Place (in English) NTT Science and Core Technology Laboratory Group 
Topics (in Japanese) (See Japanese page) 
Topics (in English) THz applications, Simulation technology, etc. 
Paper Information
Registration To EST 
Conference Code 2013-05-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Verification of a Calculation Method of Magnetoquasistatic Fields for Short-Range Wireless Identification 
Sub Title (in English)  
Keyword(1) short-range wireless identification  
Keyword(2) current loop  
Keyword(3) magnetoquasistatic fields  
Keyword(4) magnetic moment  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takayuki Ogasawara  
1st Author's Affiliation Nippon Telegraph Telephone Corporation (NTT)
2nd Author's Name Ai-ichiro Sasaki  
2nd Author's Affiliation Nippon Telegraph Telephone Corporation (NTT)
3rd Author's Name Hiroki Morimura  
3rd Author's Affiliation Nippon Telegraph Telephone Corporation (NTT)
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Speaker Author-1 
Date Time 2013-05-10 11:00:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EST2013-2 
Volume (vol) vol.113 
Number (no) no.26 
Page pp.5-10 
#Pages 6 
Date of Issue 2013-05-03 (EST) 

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