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Paper Abstract and Keywords
Presentation 2017-10-17 13:35
Numerical Analysis of Electromagnetic Coupling between WPT System and Human Body using a Hybrid MoM-FDTD Method
Satoshi Shimoyama (TUAT), Jerdvisanop Chakarothai, Kanako Wake, Soichi Watanabe (NICT), Takuji Arima, Toru Uno (TUAT) WPT2017-41
Abstract (in Japanese) (See Japanese page) 
(in English) To ensure human safety against electromagnetic (EM) exposures due to wireless power transfer (WPT) systems operating in MHz-band frequencies, a compliance test must be conducted using either numerical simulations or measurements. In this research, we perform simulation by using hybrid MoM-FDTD method for exposure evaluation inside a numerical human body in the proximity of MHz-band WPT system.
Furthermore, we investigated a strength of EM coupling between human body and WPT system in order to validate conventional two step methods which ignore effect of EM coupling; i.e., impedance method and scattered field FDTD method.
As a result, the difference in the exposure evaluation results resulting from ignoring EM coupling is 3.7 % at the maximum when the distance between human body and WPT system is 1 cm. We validated conventional two step method for exposure evaluation of MHz-band WPT systems and obtained the uncertainty caused by ignoring EM coupling.
Keyword (in Japanese) (See Japanese page) 
(in English) Hybrid MoM-FDTD method / wireless power transfer system / numerical analysis / exposure assessment / electromagnetic coupling / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 241, WPT2017-41, pp. 29-34, Oct. 2017.
Paper # WPT2017-41 
Date of Issue 2017-10-10 (WPT) 
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 EE WPT  
Conference Date 2017-10-16 - 2017-10-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WPT 
Conference Code 2017-10-EE-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Numerical Analysis of Electromagnetic Coupling between WPT System and Human Body using a Hybrid MoM-FDTD Method 
Sub Title (in English)  
Keyword(1) Hybrid MoM-FDTD method  
Keyword(2) wireless power transfer system  
Keyword(3) numerical analysis  
Keyword(4) exposure assessment  
Keyword(5) electromagnetic coupling  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Satoshi Shimoyama  
1st Author's Affiliation Tokyo university of agriculture and technology (TUAT)
2nd Author's Name Jerdvisanop Chakarothai  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Kanako Wake  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Soichi Watanabe  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Takuji Arima  
5th Author's Affiliation Tokyo university of agriculture and technology (TUAT)
6th Author's Name Toru Uno  
6th Author's Affiliation Tokyo university of agriculture and technology (TUAT)
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Speaker Author-1 
Date Time 2017-10-17 13:35:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2017-41 
Volume (vol) vol.117 
Number (no) no.241 
Page pp.29-34 
#Pages 6 
Date of Issue 2017-10-10 (WPT) 

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