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Paper Abstract and Keywords
Presentation 2022-11-15 14:05
Experimental Evaluations of Transparent Reflectors at 60 GHz
Hiroaki Hashida, Ryuhei Hibi, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Toshio Enami, Hiroyuki Nomoto (SEKISUI CHEMICAL), Susumu Ano (ATR) RCS2022-160
Abstract (in Japanese) (See Japanese page) 
(in English) The recent growth in higher demand for mobile data has motivated wireless communication over the extreme high-frequency band (EHF) to meet requirements of a higher transmission rate and massive capacities. However, EHF is prone to attenuation, diffraction, and reflection loss from blockages. Hence, wireless communication in the EHF band faces the challenge of extending the communication range in environments where obstacles exist. To address such challenges, reflecting devices are gaining attention, which can reflect radio signals in a designated direction to avoid obstacles without any significant loss. In reflecting devices, metamaterial is used to optimally control the reflection of signals by utilizing its variable electromagnetic properties. As a further development, IRS (Intelligent Reflecting Surfaces) that can dynamically control electromagnetic properties, are being actively studied as devices for optimizing time-varying propagation environments. Therefore, we have conducted measurements of basic characteristics of specular reflection of radio waves using transparent reflective film that can be a material for IRS. This paper shows some measurement results and evaluates the effectiveness of transparent reflective film compared to aluminum plates.
Keyword (in Japanese) (See Japanese page) 
(in English) Transparent Reflector / Metamaterial Reflector / Intelligent Reflecting Surface / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 252, RCS2022-160, pp. 31-36, Nov. 2022.
Paper # RCS2022-160 
Date of Issue 2022-11-08 (RCS) 
ISSN 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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2022-160

Conference Information
Committee RCS AP UWT  
Conference Date 2022-11-15 - 2022-11-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu University, and Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2022-11-RCS-AP-UWT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Evaluations of Transparent Reflectors at 60 GHz 
Sub Title (in English)  
Keyword(1) Transparent Reflector  
Keyword(2) Metamaterial Reflector  
Keyword(3) Intelligent Reflecting Surface  
1st Author's Name Hiroaki Hashida  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Ryuhei Hibi  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Yuichi Kawamoto  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Nei Kato  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Toshio Enami  
6th Author's Name Hiroyuki Nomoto  
7th Author's Name Susumu Ano  
7th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
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Speaker Author-1 
Date Time 2022-11-15 14:05:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2022-160 
Volume (vol) vol.122 
Number (no) no.252 
Page pp.31-36 
Date of Issue 2022-11-08 (RCS) 

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