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Paper Abstract and Keywords
Presentation 2025-01-24 15:30
[Invited Lecture] Evaluation of 60 GHz band Metasurface Reflector by Comparing Received Powers Between Metal and Metasurface Reflectors
Mayumi Yoshino, Doppo Sugimura, Uichiro Azuma, Natsuho Nashimoto, Hiroki Hagiwara (Dengyo) AP2024-185
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, intelligent reflecting surfaces (IRS), which reflect radio waves incident on a reflector in a desired direction, have been considered as a dead zone measure in high-frequency wireless environments. In previous studies, we have designed 5 GHz-band or 60 GHz-band IRSs and demonstrated the effectiveness of these IRSs through measurements in indoor or outdoor environments, showing that the received power in the reflected direction of the IRS can be improved by more than 20 dB in the 5 GHz-band and 10 dB in the 60 GHz-band. However, since propagation losses in the high-frequency band are greater than those in the 6 GHz band and below, the scattering pattern of the 60 GHz-band IRS must be redesigned to compensate for propagation losses equal to or greater than the effect of the 5 GHz-band IRS. Therefore, in designing the 60 GHz-band IRS, we designed a 60 GHz-band metasurface reflector (MSR) with a larger irradiation area than the conventional 60 GHz-band IRS and a wider beam width of scattering pattern of the reflector to cover a larger area at a farther distance. To verify the effectiveness of the 60 GHz-band MSR, we measured the received power in indoor and outdoor environments. This paper presents results measured only in the MSR reflection direction. The effectiveness of the 60 GHz-band MSR is discussed by comparing the received power with different incident polarizations, with and without the MSR, and with and without the metal reflector.
Keyword (in Japanese) (See Japanese page) 
(in English) 60 GHz-band / Metasurface reflector / Received power / Metal reflector / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 341, AP2024-185, pp. 96-101, Jan. 2025.
Paper # AP2024-185 
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 AP2024-185

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) Evaluation of 60 GHz band Metasurface Reflector by Comparing Received Powers Between Metal and Metasurface Reflectors 
Sub Title (in English)  
Keyword(1) 60 GHz-band  
Keyword(2) Metasurface reflector  
Keyword(3) Received power  
Keyword(4) Metal reflector  
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1st Author's Name Mayumi Yoshino  
1st Author's Affiliation Nihon Dengyo Kosaku Co., Ltd. (Dengyo)
2nd Author's Name Doppo Sugimura  
2nd Author's Affiliation Nihon Dengyo Kosaku Co., Ltd. (Dengyo)
3rd Author's Name Uichiro Azuma  
3rd Author's Affiliation Nihon Dengyo Kosaku Co., Ltd. (Dengyo)
4th Author's Name Natsuho Nashimoto  
4th Author's Affiliation Nihon Dengyo Kosaku Co., Ltd. (Dengyo)
5th Author's Name Hiroki Hagiwara  
5th Author's Affiliation Nihon Dengyo Kosaku Co., Ltd. (Dengyo)
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Speaker Author-2 
Date Time 2025-01-24 15:30:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2024-185 
Volume (vol) vol.124 
Number (no) no.341 
Page pp.96-101 
#Pages 6 
Date of Issue 2025-01-16 (AP) 

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