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Paper Abstract and Keywords
Presentation 2015-06-26 14:55
Influence of Incident Electric Field to SAR in a Human Body Close to a Wireless Power Transfer System in MHz-Band Frequency
Jerdvisanop Chakarothai (NICT), Takuya Iwamoto (TUAT), Kanako Wake, Soichi Watanabe (NICT), Takuji Arima, Toru Uno (TUAT) EMCJ2015-29
Abstract (in Japanese) (See Japanese page) 
(in English) Wireless power transfer (WPT) technology has gained much attraction due to its wide applications. Since a high power is actually applied into WPT systems, strong EM field is then created around the systems. An exposure evaluation of human body in vicinity to the WPT systems is of mandatory in consequence. Although the magnetic field is actually a dominant exposure factor, in some case, a strong incident electric near-field is not negligible. In this study, we investigate and quantify influence of incident electric field to absorption energy into human body which is placed close to two type of MHz-band wireless power transfer systems; solenoid-type and spiral-type, by comparing the results obtained with the full-wave finite-difference time-domain (FDTD) method to those by the impedance method which is based on a quasi-static approximation. It has been shown that, the effect of incident electric field is comparably large and cannot be neglected, i.e. for an exposure from such solenoid-type WPT system considered in our study.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless power transfer / exposure assessment / specific absorption rate / FDTD method / impedance method / method of moments / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 114, EMCJ2015-29, pp. 67-72, June 2015.
Paper # EMCJ2015-29 
Date of Issue 2015-06-18 (EMCJ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 EMCJ IEE-EMC IEE-MAG  
Conference Date 2015-06-25 - 2015-06-26 
Place (in Japanese) (See Japanese page) 
Place (in English) KMITL, Thailand 
Topics (in Japanese) (See Japanese page) 
Topics (in English) EMC Joint Workshop, 2015, Bangkok 
Paper Information
Registration To EMCJ 
Conference Code 2015-06-EMCJ-EMC-MAG 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of Incident Electric Field to SAR in a Human Body Close to a Wireless Power Transfer System in MHz-Band Frequency 
Sub Title (in English)  
Keyword(1) Wireless power transfer  
Keyword(2) exposure assessment  
Keyword(3) specific absorption rate  
Keyword(4) FDTD method  
Keyword(5) impedance method  
Keyword(6) method of moments  
Keyword(7)  
Keyword(8)  
1st Author's Name Jerdvisanop Chakarothai  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Takuya Iwamoto  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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 2015-06-26 14:55:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2015-29 
Volume (vol) vol.115 
Number (no) no.114 
Page pp.67-72 
#Pages 6 
Date of Issue 2015-06-18 (EMCJ) 

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