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Paper Abstract and Keywords
Presentation 2025-11-13 14:00
A consideration on a single-layer dual-polarized dual-band and wideband ring planar antenna fed by two L-probes with an X-shaped inner element
Terutoshi Goto, Yuichi Kimura (Saitama Univ.) AP2025-160
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents wideband design of a single-layer dual-polarized dual-band and wideband ring microstrip antenna (MSA) fed by two L-probes. The proposed antenna consists of a single-layer dielectric substrate, on which two square and X-shaped ring radiation patches and two L-probes for feeding are arranged in the same layer. A thick dielectric substrate with a relative dielectric constant of 2.6 and a thickness of 3.8 mm is used to obtain wideband characteristics. The design frequencies of the proposed antenna are around 9.0 GHz and 12.5 GHz. The proposed antenna is designed by using ANSYS HFSS. The simulated results reveal that the frequency ranges with reflection coefficients below -10 dB are from 8.4 to 9.9 GHz for the lower frequency band (1st mode) and from 11.2 to 14.1 GHz for the higher frequency band (2nd mode). The corresponding fractional bandwidths are 16.5% and 22.5%, respectively. Additionally, the port-to-port isolation in these frequency bands is more than 11.1 dB. It is confirmed by the simulation that the proposed single-layer dual-polarized dual-band and wideband ring MSA exhibits good wideband and dual-polarized performance.
Keyword (in Japanese) (See Japanese page) 
(in English) microstrip antenna / multiband antenna / planar antenna / wideband / dual-polarization / L-probe / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 241, AP2025-160, pp. 55-59, Nov. 2025.
Paper # AP2025-160 
Date of Issue 2025-11-05 (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 AP2025-160

Conference Information
Committee AP RCS  
Conference Date 2025-11-12 - 2025-11-14 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime Prefectural Convention Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. 
Paper Information
Registration To AP 
Conference Code 2025-11-AP-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A consideration on a single-layer dual-polarized dual-band and wideband ring planar antenna fed by two L-probes with an X-shaped inner element 
Sub Title (in English)  
Keyword(1) microstrip antenna  
Keyword(2) multiband antenna  
Keyword(3) planar antenna  
Keyword(4) wideband  
Keyword(5) dual-polarization  
Keyword(6) L-probe  
Keyword(7)  
Keyword(8)  
1st Author's Name Terutoshi Goto  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Yuichi Kimura  
2nd Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-1 
Date Time 2025-11-13 14:00:00 
Presentation Time 20 minutes 
Registration for AP 
Paper # AP2025-160 
Volume (vol) vol.125 
Number (no) no.241 
Page pp.55-59 
#Pages 5 
Date of Issue 2025-11-05 (AP) 

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