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Paper Abstract and Keywords
Presentation 2026-06-19 10:25
3D Bessel Beam Generation Using Reconfigurable Intellient Surfaces with Closed-Form Design
Daiki Inoue, Koji Ishibashi (UEC) RCS2026-76
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a method for generating Bessel beams using a reconfigurable intelligent surface (RIS). Besselbeams have attracted attention as promising approach to overcome communication instability in high-frequency bands becauseof their self-healing property, which enables the main lobe to maintain its intensity even behind obstacles. To realize robustcommunication in practical environments, it is necessary to dynamically control both the beam directions and cone anglesaccording to user locations and propagation conditions. To address this issue, we derive a closed-form expression for the phaseshift at each RIS element required to generate Bessel beams in three-dimensional space and implement the derived closed-formphase control via a 28GHz RIS with line-of-sight environments. Through numerical results from electromagnetic simulationsand real-world experiments, we theoretically and experimentally demonstrate that the proposed phase distribution allows forthe formation of Bessel beams in the desired directions while maintaining their self-healing propagation characteristics.
Keyword (in Japanese) (See Japanese page) 
(in English) Reconfigurable Intelligent Surface / Near-Field Communication / Bessel Beams / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 72, RCS2026-76, pp. 285-290, June 2026.
Paper # RCS2026-76 
Date of Issue 2026-06-10 (RCS) 
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 RCS2026-76

Conference Information
Committee RCS  
Conference Date 2026-06-17 - 2026-06-19 
Place (in Japanese) (See Japanese page) 
Place (in English) The Ohama Nobumoto Memorial Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2026-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) 3D Bessel Beam Generation Using Reconfigurable Intellient Surfaces with Closed-Form Design 
Sub Title (in English)  
Keyword(1) Reconfigurable Intelligent Surface  
Keyword(2) Near-Field Communication  
Keyword(3) Bessel Beams  
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1st Author's Name Daiki Inoue  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Koji Ishibashi  
2nd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2026-06-19 10:25:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2026-76 
Volume (vol) vol.126 
Number (no) no.72 
Page pp.285-290 
#Pages 6 
Date of Issue 2026-06-10 (RCS) 

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