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Paper Abstract and Keywords
Presentation 2017-11-21 13:25
Circuit Modeling of a Wireless Power Transfer System by the Impedance Expansion Method
Nozomi Haga (Gunma Univ.), Masaharu Takahashi (Chiba Univ.) WPT2017-48
Abstract (in Japanese) (See Japanese page) 
(in English) The impedance expansion method (IEM), which was previously proposed by the authors, is a circuit-modeling technique for electrically-very-small devices.
This report describes a circuit-modeling procedure for a wireless power transfer system by the IEM.
First, the modal currents of the coil are obtained via eigenmode analysis, and it is shown that the behavior of the system can accurately be approximated only by the fundamental mode.
Then, an equivalent-circuit model based only on the fundamental mode is proposed, and it is shown that the topology of the circuit model corresponds directly to the physical constitution of the system.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless power transfer / method of moments / impedance expansion method / eigenmodes / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 318, WPT2017-48, pp. 21-26, Nov. 2017.
Paper # WPT2017-48 
Date of Issue 2017-11-14 (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)
Download PDF WPT2017-48

Conference Information
Committee WPT EMCJ  
Conference Date 2017-11-21 - 2017-11-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Power Transmission, Electronic Packaging, EMC 
Paper Information
Registration To WPT 
Conference Code 2017-11-WPT-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Circuit Modeling of a Wireless Power Transfer System by the Impedance Expansion Method 
Sub Title (in English)  
Keyword(1) wireless power transfer  
Keyword(2) method of moments  
Keyword(3) impedance expansion method  
Keyword(4) eigenmodes  
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1st Author's Name Nozomi Haga  
1st Author's Affiliation Gunma University (Gunma Univ.)
2nd Author's Name Masaharu Takahashi  
2nd Author's Affiliation Chiba University (Chiba Univ.)
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Speaker Author-1 
Date Time 2017-11-21 13:25:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2017-48 
Volume (vol) vol.117 
Number (no) no.318 
Page pp.21-26 
#Pages 6 
Date of Issue 2017-11-14 (WPT) 

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