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Paper Abstract and Keywords
Presentation 2024-10-17 10:00
[Poster Presentation] Improved reflection properties of Metasurface with Adam
Naoki Shimizu, Mitoshi Fujimoto (Fukui Univ.) AP2024-92
Abstract (in Japanese) (See Japanese page) 
(in English) In mobile communication systems that use high-frequency bands such as 5G, the strong linearity of radio waves causes shielding by obstacles such as buildings and road signs,resulting in areas where radio waves cannot reach (coverage holes). As a countermeasure, the use of Metasurface reflectors, which can control the direction of reflected waves and reflect radio waves in directions other than the original reflection direction, is being considered. Metasurface reflector consists of multiple unit cells. Due to inter-element coupling between adjacent unit cells, reflection performance is degraded. In this report, we propose a method to improve the reflection performance of supercells by using Adam (Adaptive Moment Estimation). Specifically, the reflection performance is improved by reducing the side lobes. FDTD simulation results show that the proposed method is effective in improving reflection performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Metasurface / supercell / Adam / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 206, AP2024-92, pp. 100-101, Oct. 2024.
Paper # AP2024-92 
Date of Issue 2024-10-09 (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 AP2024-92

Conference Information
Committee AP  
Conference Date 2024-10-16 - 2024-10-18 
Place (in Japanese) (See Japanese page) 
Place (in English) ACROS Fukuoka 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Student Session, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2024-10-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improved reflection properties of Metasurface with Adam 
Sub Title (in English)  
Keyword(1) Metasurface  
Keyword(2) supercell  
Keyword(3) Adam  
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1st Author's Name Naoki Shimizu  
1st Author's Affiliation University of Fukui (Fukui Univ.)
2nd Author's Name Mitoshi Fujimoto  
2nd Author's Affiliation University of Fukui (Fukui Univ.)
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Speaker Author-1 
Date Time 2024-10-17 10:00:00 
Presentation Time 110 minutes 
Registration for AP 
Paper # AP2024-92 
Volume (vol) vol.124 
Number (no) no.206 
Page pp.100-101 
#Pages 2 
Date of Issue 2024-10-09 (AP) 

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