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Paper Abstract and Keywords
Presentation 2024-05-17 10:00
Design and Experiments of Circularly Polarized Wideband Filtering Antenna with 20% Fractional Bandwidth
Ken Sakiyama (Saitama Univ.), Masataka Ohira (Doshisha Univ.), Zhewang Ma (Saitama Univ.) MW2024-12
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a new structure of circularly polarized wideband filtering antenna (filtenna) that realizes a very flat in-band gain and unidirectional radiation pattern in 20% fractional bandwidth. In conventional works, a wideband circularly polarized filtenna with 27.8% bandwidth has been developed by combining a dielectric resonator antenna and a circular patch coupler. However, it has not been clarified yet how to design such an antenna under a given bandwidth. In addition, it is difficult to improve frequency selectivity using multiple resonators like a bandpass filter (BPF) because multiple resonators cannot be implemented in the antenna structure. This paper proposes a new circularly polarized wideband filtenna structure, which can be designed from the circuit synthesis of transmission-line type BPF with power dividers. As an example, a 4-GHz band circularly polarized filtering antenna with 20% bandwidth is designed and tested. Its effectiveness is demonstrated through measurements of reflection and radiation characteristics for the fabricated filtenna.
Keyword (in Japanese) (See Japanese page) 
(in English) filtering antenna / circular polarization / wideband / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 32, MW2024-12, pp. 23-28, May 2024.
Paper # MW2024-12 
Date of Issue 2024-05-09 (MW) 
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 MW2024-12

Conference Information
Committee MW  
Conference Date 2024-05-16 - 2024-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka University Toyonaka Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2024-05-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design and Experiments of Circularly Polarized Wideband Filtering Antenna with 20% Fractional Bandwidth 
Sub Title (in English)  
Keyword(1) filtering antenna  
Keyword(2) circular polarization  
Keyword(3) wideband  
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1st Author's Name Ken Sakiyama  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Masataka Ohira  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Zhewang Ma  
3rd Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-2 
Date Time 2024-05-17 10:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2024-12 
Volume (vol) vol.124 
Number (no) no.32 
Page pp.23-28 
#Pages 6 
Date of Issue 2024-05-09 (MW) 

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