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Paper Abstract and Keywords
Presentation 2020-11-19 15:00
Theoretical Design of Wideband Bandpass Filter with Transmission Zeroes
Hang Sun, Chun-Ping Chen, Erika Katsuno, Hao Wu, Tetsuo Anada (Kanagawa Univ.) MW2020-69 Link to ES Tech. Rep. Archives: MW2020-69
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a quasi-elliptical wideband filter with steep skirt characteristics by combining short-circuited-stub-loaded-parallel-coupled-lines and open-circuited stubs, as well as the corresponding design theory. First, we design a Chebyshev-type wideband bandpass filter consisting of short-circuit stubs, a parallel coupling line, and short-circuited-stub-loaded-parallel-coupled-lines, based on synthesis theory. Next, by replacing two-stage open-circuited-stubs with short-circuited-stubs at the input-/output-ports, two attenuation poles are realized in the stopbands near the cutoff frequencies. As a result, steeper roll-off characteristics are obtained. To confirm the proposed design theory, as a practical example, a wideband bandpass filter with a fractional bandwidth of 38% is designed, fabricated and measured. Simulation, measurement and theoretical results agree well with each other, which validates the effectiveness of the proposed filter structures and corresponding synthesis theory.
Keyword (in Japanese) (See Japanese page) 
(in English) Short/open-circuited-stubs / Parallel-coupled-lines / Wideband / Bandpass filters / Transmission zeroes / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 240, MW2020-69, pp. 23-28, Nov. 2020.
Paper # MW2020-69 
Date of Issue 2020-11-12 (MW) 
ISSN Online edition: ISSN 2432-6380
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 MW2020-69 Link to ES Tech. Rep. Archives: MW2020-69

Conference Information
Committee MW  
Conference Date 2020-11-19 - 2020-11-19 
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 2020-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Design of Wideband Bandpass Filter with Transmission Zeroes 
Sub Title (in English)  
Keyword(1) Short/open-circuited-stubs  
Keyword(2) Parallel-coupled-lines  
Keyword(3) Wideband  
Keyword(4) Bandpass filters  
Keyword(5) Transmission zeroes  
1st Author's Name Hang Sun  
1st Author's Affiliation Kanagawa University (Kanagawa Univ.)
2nd Author's Name Chun-Ping Chen  
2nd Author's Affiliation Kanagawa University (Kanagawa Univ.)
3rd Author's Name Erika Katsuno  
3rd Author's Affiliation Kanagawa University (Kanagawa Univ.)
4th Author's Name Hao Wu  
4th Author's Affiliation Kanagawa University (Kanagawa Univ.)
5th Author's Name Tetsuo Anada  
5th Author's Affiliation Kanagawa University (Kanagawa Univ.)
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Speaker Author-1 
Date Time 2020-11-19 15:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2020-69 
Volume (vol) vol.120 
Number (no) no.240 
Page pp.23-28 
Date of Issue 2020-11-12 (MW) 

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