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Paper Abstract and Keywords
Presentation 2011-12-16 09:30
A Study on Ultra-Wideband Bandpass Filter with Tunable Notch-Band
Masayoshi Kamada, Takenori Yasuzumi, Tomoki Uwano, Osamu Hashimoto (Aoyama Gakuin Univ.) MW2011-133
Abstract (in Japanese) (See Japanese page) 
(in English) An ultra-wideband bandpass filter (UWB BPF) along with a tunable notch circuit is proposed in this paper. We have examined a compact UWB BPF which consists of shunt parallel-coupled lines and two transmission lines with a coupling capacitor inbetween. In this study, a new resonator is combined between the weakly-coupled resonators of the UWB BPF and the resonator creates a notch at the passband. The notch frequency was tuned by a varactor. As the results, the proposed BPF had the fractional bandwidth over 110 $\%$ and the notch frequencies from 2.1 to 2.7 GHz were realized. In addition, it was shown that the two stage tunable notch circuit improved the attenuation characteristics.
Keyword (in Japanese) (See Japanese page) 
(in English) Tunable notch filter / varactor diode / UWB / parallel-coupled lines / MSL / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 351, MW2011-133, pp. 41-46, Dec. 2011.
Paper # MW2011-133 
Date of Issue 2011-12-08 (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 MW2011-133

Conference Information
Committee MW  
Conference Date 2011-12-15 - 2011-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaguchi University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2011-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Ultra-Wideband Bandpass Filter with Tunable Notch-Band 
Sub Title (in English)  
Keyword(1) Tunable notch filter  
Keyword(2) varactor diode  
Keyword(3) UWB  
Keyword(4) parallel-coupled lines  
Keyword(5) MSL  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masayoshi Kamada  
1st Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
2nd Author's Name Takenori Yasuzumi  
2nd Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
3rd Author's Name Tomoki Uwano  
3rd Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
4th Author's Name Osamu Hashimoto  
4th Author's Affiliation Aoyama Gakuin University (Aoyama Gakuin Univ.)
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Speaker Author-1 
Date Time 2011-12-16 09:30:00 
Presentation Time 30 minutes 
Registration for MW 
Paper # MW2011-133 
Volume (vol) vol.111 
Number (no) no.351 
Page pp.41-46 
#Pages 6 
Date of Issue 2011-12-08 (MW) 

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