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Paper Abstract and Keywords
Presentation 2015-12-17 14:25
Design of Compact Lowpass Filters Using Microstrip Stub-Loaded Coupled-Lines
Kohei Beppu, Zhewang Ma, Masataka Ohira (Saitama Univ.) MW2015-140
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, a microstrip lowpass filter (LPF) using stub-loaded coupled-lines is analyzed, and close-form formulas are derived for determining the frequencies at which the reflection zeros, the transmission zeros, and the 3dB cutoff occur. A compact LPF is then designed and fabricated, and the measured frequency response verifies well the derived formulas. Finally, with appropriate design and connection of two stub-loaded coupled-lines, a LPF with small size, sharp passband skirt, and very wide stopband is realized.
Keyword (in Japanese) (See Japanese page) 
(in English) Microstrip coupled lines / lowpass filter / transmission zero / wide stopband / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 372, MW2015-140, pp. 41-46, Dec. 2015.
Paper # MW2015-140 
Date of Issue 2015-12-10 (MW) 
ISSN Print edition: ISSN 0913-5685    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 MW2015-140

Conference Information
Committee MW  
Conference Date 2015-12-17 - 2015-12-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Univ. of Science 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Students Session / Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2015-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design of Compact Lowpass Filters Using Microstrip Stub-Loaded Coupled-Lines 
Sub Title (in English)  
Keyword(1) Microstrip coupled lines  
Keyword(2) lowpass filter  
Keyword(3) transmission zero  
Keyword(4) wide stopband  
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1st Author's Name Kohei Beppu  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Zhewang Ma  
2nd Author's Affiliation Saitama University (Saitama Univ.)
3rd Author's Name Masataka Ohira  
3rd Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-1 
Date Time 2015-12-17 14:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2015-140 
Volume (vol) vol.115 
Number (no) no.372 
Page pp.41-46 
#Pages 6 
Date of Issue 2015-12-10 (MW) 

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