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Paper Abstract and Keywords
Presentation 2021-03-05 10:30
Design of Tunable Filtering Array Antenna with Constant Absolute Bandwidth
Takuya Sakemoto, Masataka Ohira, Zhewang Ma (Saitama Univ.), Akihiiro Yamada (Nippon Antenna) MW2020-91
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the demand for tunable antennas has been increasing with the rapid growing various wireless communication systems. In conventional works, the co-design approach of tunable bandpass filter and tunable antenna have been proposed to realize a variable frequency characteristic with a constant absolute bandwidth. However, such tunable filtering antennas have two main problems: 1) variable frequency range is narrow and 2) the beam width is wide because there is no beam-forming function. This paper proposes a new tunable filtering array antenna that can form a directional beam using a two-element array and has a wider variable frequency range than conventional tunable filtering antenna. As an example, we design a microstrip tunable filtering array antenna with a tunable range of 2.32-3.12 GHz (29.4%) and 150-MHz constant equiripple bandwidth. The effectiveness of the proposed tunable filtering array antenna is verified through the comparison of frequency-selective/tunable and radiation characteristics between EM simulated and measured results.
Keyword (in Japanese) (See Japanese page) 
(in English) Tunable antenna / filtering antenna / array antenna / absolute frequency bandwidth / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 422, MW2020-91, pp. 1-6, March 2021.
Paper # MW2020-91 
Date of Issue 2021-02-26 (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)
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Conference Information
Committee MW  
Conference Date 2021-03-05 - 2021-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MW 
Conference Code 2021-03-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design of Tunable Filtering Array Antenna with Constant Absolute Bandwidth 
Sub Title (in English)  
Keyword(1) Tunable antenna  
Keyword(2) filtering antenna  
Keyword(3) array antenna  
Keyword(4) absolute frequency bandwidth  
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1st Author's Name Takuya Sakemoto  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Masataka Ohira  
2nd Author's Affiliation Saitama University (Saitama Univ.)
3rd Author's Name Zhewang Ma  
3rd Author's Affiliation Saitama University (Saitama Univ.)
4th Author's Name Akihiiro Yamada  
4th Author's Affiliation Nippon Antenna Company Limited (Nippon Antenna)
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Speaker Author-1 
Date Time 2021-03-05 10:30:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2020-91 
Volume (vol) vol.120 
Number (no) no.422 
Page pp.1-6 
#Pages 6 
Date of Issue 2021-02-26 (MW) 

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