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Paper Abstract and Keywords
Presentation 2019-09-20 13:10
Design and Experimental Evaluation of Wideband Microstrip Filtenna Based on Wideband Transmission Line Bandpass Filter
Masataka Ohira, Yusuke Suzuki, Zhewang Ma (Saitama Univ.) MW2019-58 Link to ES Tech. Rep. Archives: MW2019-58
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, a filtering antenna or filtenna is becoming one of the attractive circuits that can be designed with a well-established circuit synthesis theory of microwave bandpass filters (BPFs). To realize a wideband response, however, there are two problems: one is a theoretical problem that a narrow-band approximation cannot be applied to a wideband filter synthesis, and the other is an antenna design issue that the realization of both a low radiation Q factor and a unidirectional radiation pattern are required. To solve the former one, this paper introduces a filter synthesis approach of a wideband transmission-line based BPF, and proposes a microstrip filtenna consisting of two dielectric substrates individually constituting resonators and antenna to solve the latter one. We design a wideband fifth-order microstrip filtenna under the specifications of center frequency 4 GHz and fractional bandwidth 20%. As a result, it can be numerically and experimentally confirmed that the designed filtenna provides the specified wide passband, a unidirectional radiation pattern in band, and good skirt selectivity out of band.
Keyword (in Japanese) (See Japanese page) 
(in English) filtering antenna / wideband bandpass filter / radiation Q factor / circuit synthesis / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 204, MW2019-58, pp. 17-22, Sept. 2019.
Paper # MW2019-58 
Date of Issue 2019-09-12 (MW) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 MW2019-58 Link to ES Tech. Rep. Archives: MW2019-58

Conference Information
Committee MW AP  
Conference Date 2019-09-19 - 2019-09-20 
Place (in Japanese) (See Japanese page) 
Place (in English) JAXA (Sagamihara) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, Millimeter wave, Antennas and Propagation 
Paper Information
Registration To MW 
Conference Code 2019-09-MW-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design and Experimental Evaluation of Wideband Microstrip Filtenna Based on Wideband Transmission Line Bandpass Filter 
Sub Title (in English)  
Keyword(1) filtering antenna  
Keyword(2) wideband bandpass filter  
Keyword(3) radiation Q factor  
Keyword(4) circuit synthesis  
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1st Author's Name Masataka Ohira  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Yusuke Suzuki  
2nd Author's Affiliation Saitama University (Saitama Univ.)
3rd Author's Name Zhewang Ma  
3rd Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-1 
Date Time 2019-09-20 13:10:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2019-58 
Volume (vol) vol.119 
Number (no) no.204 
Page pp.17-22 
#Pages
Date of Issue 2019-09-12 (MW) 


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