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Paper Abstract and Keywords
Presentation 2019-07-19 15:35
Circuit Modeling of a Wireless Power Transfer System by the Impedance Expansion Method
Nozomi Haga (Gunma Univ.), Masaharu Takahashi (Chiba Univ.) WPT2019-24
Abstract (in Japanese) (See Japanese page) 
(in English) The impedance expansion method (IEM) is a circuit modeling technique for electrically very small devices based on the method of moments. In the authors' previous work, a circuit model of wireless power transfer systems was obtained by utilizing the IEM and eigenmode analysis. However, its applicable frequency is only at approximately the operating frequency of the system because it considers only the fundamental modal current of the coils. In this report, a novel multimode circuit model that considers multiple modal currents is proposed, and its applicable frequencies in a broadband frequency range are discussed.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless power transfer / method of moments / impedance expansion method / eigenmodes / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 135, WPT2019-24, pp. 13-17, July 2019.
Paper # WPT2019-24 
Date of Issue 2019-07-12 (WPT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 WPT2019-24

Conference Information
Committee EMCJ EMD WPT PEM  
Conference Date 2019-07-19 - 2019-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WPT 
Conference Code 2019-07-EMCJ-EMD-WPT-PEM 
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  
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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Date Time 2019-07-19 15:35:00 
Presentation Time 25 
Registration for WPT 
Paper # IEICE-WPT2019-24 
Volume (vol) IEICE-119 
Number (no) no.135 
Page pp.13-17 
#Pages IEICE-5 
Date of Issue IEICE-WPT-2019-07-12 

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