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Paper Abstract and Keywords
Presentation 2023-05-11 10:55
Evaluation of Multi-Rectenna Channel Estimation Based on Beam-Space Smoothing for Microwave WPT
Shunto Arai, Kentaro Murata, Naoki Honma (Iwate Univ.) AP2023-9
Abstract (in Japanese) (See Japanese page) 
(in English) This study proposes a passive channel estimation method using the nonlinearity of the rectenna reflection coefficient for the incident power to achieve highly efficient wireless power transfer (WPT) for multiple~rectennas. Assuming that multiple WPT stations transmit power cooperatively or selectively, one transmits pilot signals with different intensities using multiple beams, and the backscattered waves generated at rectennas are pseudo-load-modulated. Then, the correlation matrix of the pseudo-load-modulated signals detected at the others is spatially averaged along the ``beam axis'' to separate and estimate the channels of multiple rectennas passively. Coupled simulation results show that the proposed method offers high channel estimation accuracy and transfer efficiency.
Keyword (in Japanese) (See Japanese page) 
(in English) Microwave wireless power transfer / Channel estimation / Rectenna / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 16, AP2023-9, pp. 7-12, May 2023.
Paper # AP2023-9 
Date of Issue 2023-05-04 (AP) 
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 AP2023-9

Conference Information
Committee AP  
Conference Date 2023-05-11 - 2023-05-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Gender Equality Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2023-05-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Multi-Rectenna Channel Estimation Based on Beam-Space Smoothing for Microwave WPT 
Sub Title (in English)  
Keyword(1) Microwave wireless power transfer  
Keyword(2) Channel estimation  
Keyword(3) Rectenna  
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1st Author's Name Shunto Arai  
1st Author's Affiliation Iwate University (Iwate Univ.)
2nd Author's Name Kentaro Murata  
2nd Author's Affiliation Iwate University (Iwate Univ.)
3rd Author's Name Naoki Honma  
3rd Author's Affiliation Iwate University (Iwate Univ.)
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Speaker Author-1 
Date Time 2023-05-11 10:55:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2023-9 
Volume (vol) vol.123 
Number (no) no.16 
Page pp.7-12 
#Pages 6 
Date of Issue 2023-05-04 (AP) 

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