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Paper Abstract and Keywords
Presentation 2010-01-21 16:35
Analysis of Resonant-type Wireless Power Transmission by BPF Theory
Ikuo Awai (Ryukoku Univ.) AP2009-169
Abstract (in Japanese) (See Japanese page) 
(in English) The design theory for a band pass filter (BPF) is applied for the analysis of the resonant –type wireless power transmission system. Since the system transmits the electromagnetic energy through evanescent wave coupling between two resonators, it is just a two-stage band pass filter, as long as the circuit matching is taken into account.
The present design theory allows different terminal resistances, that is, the generator and load impedances can be different. Since the load for the power transmission varies according to the practical applications, matching ability for arbitrary load is quite important.
In addition, the transmission loss is analytically derived by the BPF theory, which has not been given so far. The analytical expression shows what parameters are crucial for the wireless power transmission.
Some comments are given about the term “magnetic resonance” that is frequently used among the researchers of wireless power transmission. It is only adequate to describe the resonance of the precession of spins (magnetic moments) that is magnetized. “Magnetic resonance” should be read “magnetic coupling” for the present system.
Keyword (in Japanese) (See Japanese page) 
(in English) wireless power transmission / resonant-type / BPF design / circuit matching / transmission loss / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 372, AP2009-169, pp. 81-86, Jan. 2010.
Paper # AP2009-169 
Date of Issue 2010-01-14 (AP) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee AP  
Conference Date 2010-01-21 - 2010-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaguchi University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP 
Paper Information
Registration To AP 
Conference Code 2010-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of Resonant-type Wireless Power Transmission by BPF Theory 
Sub Title (in English)  
Keyword(1) wireless power transmission  
Keyword(2) resonant-type  
Keyword(3) BPF design  
Keyword(4) circuit matching  
Keyword(5) transmission loss  
1st Author's Name Ikuo Awai  
1st Author's Affiliation Ryukoku University (Ryukoku Univ.)
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Date Time 2010-01-21 16:35:00 
Presentation Time 25 
Registration for AP 
Paper # IEICE-AP2009-169 
Volume (vol) IEICE-109 
Number (no) no.372 
Page pp.81-86 
#Pages IEICE-6 
Date of Issue IEICE-AP-2010-01-14 

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