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Paper Abstract and Keywords
Presentation 2025-01-23 15:10
[Invited Lecture] RePH: RIS-inspired Reconfigurable Electronic Phantom
Kentaro Murata, Chihiro Segawa, Yuto Ozawa, Ayumi Sato, Naoki Honma, Shinya Miyajima (Iwate Univ.) AP2024-175
Abstract (in Japanese) (See Japanese page) 
(in English) In human sensing radar testing, it is inherently difficult to compare different radar devices under the same conditions due to the unreproducibility of human biological activity. This is the rate-limiting factor for research and development and practical application of human sensing radars. Inspired by the idea of reconfigurable intelligent surfaces (RIS), which can control the propagation characteristics of radio waves using a passive and simple hardware configuration, we have proposed a reconfigurable electronic phantom (RePH) that can reproduce radar channels corresponding to arbitrary targets using RIS. In this paper, we propose a method for more accurately predicting and reconstructing radar channels by using a RePH composed of a variable load circuit that can independently control both the amplitude and phase of the reflection coefficient, and based on the in-situ estimation method of the channel and S-parameter information for the RePH. We also report the results of experiments in which we successfully reconstructed the time-varying radar channels of dynamic targets with high accuracy using the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) radar / over-the-air testing / phantom / reconfigurable intelligent surface / variable load / channel reconstruction / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 341, AP2024-175, pp. 45-50, Jan. 2025.
Paper # AP2024-175 
Date of Issue 2025-01-16 (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 AP2024-175

Conference Information
Committee AP WPT  
Conference Date 2025-01-23 - 2025-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Rokan, Matsue 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radio propagation, Wireless transmission technology, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2025-01-AP-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) RePH: RIS-inspired Reconfigurable Electronic Phantom 
Sub Title (in English)  
Keyword(1) radar  
Keyword(2) over-the-air testing  
Keyword(3) phantom  
Keyword(4) reconfigurable intelligent surface  
Keyword(5) variable load  
Keyword(6) channel reconstruction  
Keyword(7)  
Keyword(8)  
1st Author's Name Kentaro Murata  
1st Author's Affiliation Iwate University (Iwate Univ.)
2nd Author's Name Chihiro Segawa  
2nd Author's Affiliation Iwate University (Iwate Univ.)
3rd Author's Name Yuto Ozawa  
3rd Author's Affiliation Iwate University (Iwate Univ.)
4th Author's Name Ayumi Sato  
4th Author's Affiliation Iwate University (Iwate Univ.)
5th Author's Name Naoki Honma  
5th Author's Affiliation Iwate University (Iwate Univ.)
6th Author's Name Shinya Miyajima  
6th Author's Affiliation Iwate University (Iwate Univ.)
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Speaker Author-1 
Date Time 2025-01-23 15:10:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2024-175 
Volume (vol) vol.124 
Number (no) no.341 
Page pp.45-50 
#Pages 6 
Date of Issue 2025-01-16 (AP) 

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