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Paper Abstract and Keywords
Presentation 2008-09-12 10:45
Transmission Efficiency of Evanescent Resonant Coupling Wireless Power Transfer System with Consideration of Human Body Effect
Qiaowei Yuan, Qiang Chen, Kunio Sawaya (Tohoku Univ.) AP2008-91
Abstract (in Japanese) (See Japanese page) 
(in English) A more practical wireless transmission system consisting of a larger rectangular wire loop and a small square wire loop with a parasitic square helical coil is proposed for efficient evanescent resonant coupling wireless power transmission system in a office room. The power transmission efficiency is directly defined as the ratio of the receiving power at the receiving element and the input power at the source element and calculated by the full wave solver. The resonant frequency of the system is proposed to be tuned from investigating the input impedance of transmitting element and receiving element as an antenna design usually carries out. The simulation results show the transmission power efficiency can exceed 60% when the proposed system is used to charge only one user, the simulation results also investigate the effects of the position, the number of receiving element and the human body on the power transmission efficiency and the resonant frequency in detail in order to obtain the design guidelines for a practical wireless power system.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless / Power transfer / Evanescent / Resonant / Efficiency / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 201, AP2008-91, pp. 95-100, Sept. 2008.
Paper # AP2008-91 
Date of Issue 2008-09-04 (AP) 
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 AP  
Conference Date 2008-09-11 - 2008-09-12 
Place (in Japanese) (See Japanese page) 
Place (in English) National Defense Academy 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Etc. 
Paper Information
Registration To AP 
Conference Code 2008-09-AP 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transmission Efficiency of Evanescent Resonant Coupling Wireless Power Transfer System with Consideration of Human Body Effect 
Sub Title (in English)  
Keyword(1) Wireless  
Keyword(2) Power transfer  
Keyword(3) Evanescent  
Keyword(4) Resonant  
Keyword(5) Efficiency  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Qiaowei Yuan  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Qiang Chen  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Kunio Sawaya  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2008-09-12 10:45:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2008-91 
Volume (vol) vol.108 
Number (no) no.201 
Page pp.95-100 
#Pages 6 
Date of Issue 2008-09-04 (AP) 

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