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Paper Abstract and Keywords
Presentation 2019-06-11 10:10
Maximizing power supply efficiency with amplification in relay nodes for multi-hop relay wireless power transmission
Takahiro Okumoto, Shota Mizuguchi, Ryuji Kohno (YNU) WPT2019-16
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years,unmanned aerial vehicles(UAV) have been rapidly spreading, and
their uses such as searching for victims at the time of a disaster are various.
First of all, as an issue of unmanned aerial vehicles, it is impossible to fly for a long time.
Therefore, I am conducting research on wireless power transmission(WPT)
of microwave transmission system suitable for long distance transmission, which
makes it possible to carry out flight and power supply at the same time.
However,
in the microwave transmission system, the amount of power supply decreases in
inverse proportion to the square of the power transmission distance.
Therefore, in this research, we propose multihop relay system to improve the amount of power supply by applying multihop relay scheme technology
which is used in wireless information transmission of 4G to wireless power transmission(WPT).
I derived the theoretical limit of the feed quantity considering the near field in the multihop relay system.
And I derived the optimum number of repeaters which maximizes the power supply amount were carried out.
In addition, as an improvement method of the multihop relay method, the repeater was given ET function, and the power supply was amplified by the repeater, so the amount of power supply was improved.
Keyword (in Japanese) (See Japanese page) 
(in English) Microwave Method WPT / Linear Array / Rectenna / Drone / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 74, WPT2019-16, pp. 31-35, June 2019.
Paper # WPT2019-16 
Date of Issue 2019-06-03 (WPT) 
ISSN 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 WPT2019-16

Conference Information
Committee WPT  
Conference Date 2019-06-10 - 2019-06-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless power transfer, others 
Paper Information
Registration To WPT 
Conference Code 2019-06-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Maximizing power supply efficiency with amplification in relay nodes for multi-hop relay wireless power transmission 
Sub Title (in English)  
Keyword(1) Microwave Method WPT  
Keyword(2) Linear Array  
Keyword(3) Rectenna  
Keyword(4) Drone  
Keyword(5)  
Keyword(6)  
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Keyword(8)  
1st Author's Name Takahiro Okumoto  
1st Author's Affiliation Yokohama National University (YNU)
2nd Author's Name Shota Mizuguchi  
2nd Author's Affiliation Yokohama National University (YNU)
3rd Author's Name Ryuji Kohno  
3rd Author's Affiliation Yokohama National University (YNU)
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Speaker Author-1 
Date Time 2019-06-11 10:10:00 
Presentation Time 20 minutes 
Registration for WPT 
Paper # WPT2019-16 
Volume (vol) vol.119 
Number (no) no.74 
Page pp.31-35 
#Pages 5 
Date of Issue 2019-06-03 (WPT) 

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