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Paper Abstract and Keywords
Presentation 2021-11-18 15:00
Axial Ratio Improvement of Receiving Array Antenna for Wireless Power Transmission to Drones
Nobuyuki Takabayashi, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) MW2021-70
Abstract (in Japanese) (See Japanese page) 
(in English) Drones have been drawing a great deal of attention from various kind of industries, such as delivery, building inspections, and agriculture. However, short capacity of battery loaded on a drone limits its continuous operation time. In that circumstance, we are proposing a microwave power transmission (MPT) system for drones as another power source independent of battery. A 16-element receiving array is prepared as a receiver for MPT using honeycomb substrate in order to reduce the gross weight of antennas. It is common to regard honeycomb substrate as air substrate where the relative permittivity is 1 and the loss tangent is 0 for simplified simulations. However, this assumption causes deviation between simulations and measurements mainly with regard to axial ratio. In this study, axial ratio property of receiving antenna elements was modified through S-parameter measurements to get the best performance of the receiving array made of honeycomb substrate.
Keyword (in Japanese) (See Japanese page) 
(in English) Drone / Axial Ratio / Array Antenna / Honeycomb Substrate / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 254, MW2021-70, pp. 19-23, Nov. 2021.
Paper # MW2021-70 
Date of Issue 2021-11-11 (MW) 
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 MW2021-70

Conference Information
Committee MW  
Conference Date 2021-11-18 - 2021-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagoshima University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave 
Paper Information
Registration To MW 
Conference Code 2021-11-MW 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Axial Ratio Improvement of Receiving Array Antenna for Wireless Power Transmission to Drones 
Sub Title (in English)  
Keyword(1) Drone  
Keyword(2) Axial Ratio  
Keyword(3) Array Antenna  
Keyword(4) Honeycomb Substrate  
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1st Author's Name Nobuyuki Takabayashi  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Naoki Shinohara  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Tomohiko Mitani  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2021-11-18 15:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2021-70 
Volume (vol) vol.121 
Number (no) no.254 
Page pp.19-23 
#Pages 5 
Date of Issue 2021-11-11 (MW) 

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