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Paper Abstract and Keywords
Presentation 2011-03-03 11:25
Center Frequency and Bandwidth Tunable Filter with Symmetric Attenuation Characteristics
Kunihiro Kawai, Hiroshi Okazaki, Shoichi Narahashi (NTT DOCOMO) MW2010-156
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a novel tunable resonator and bandpass filter that have symmetric attenuation characteristics about the resonant frequency, which can tune their resonant/center frequency and bandwidth independently. The proposed resonator consists of switches, a pair of transmission lines, and variable reactance circuits. The variable reactance circuits can tune the attenuation characteristics to be symmetric with respect to the resonant frequency by configuring attenuation poles appropriately. A two-pole bandpass filter is demonstrated to confirm the effectiveness of the proposed filter architecture.
Keyword (in Japanese) (See Japanese page) 
(in English) Tunable filter / Microstrip / Switches / / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 447, MW2010-156, pp. 23-26, March 2011.
Paper # MW2010-156 
Date of Issue 2011-02-24 (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 MW2010-156

Conference Information
Committee AP MW  
Conference Date 2011-03-03 - 2011-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Ibaraki Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AP, MW 
Paper Information
Registration To MW 
Conference Code 2011-03-AP-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Center Frequency and Bandwidth Tunable Filter with Symmetric Attenuation Characteristics 
Sub Title (in English)  
Keyword(1) Tunable filter  
Keyword(2) Microstrip  
Keyword(3) Switches  
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1st Author's Name Kunihiro Kawai  
1st Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
2nd Author's Name Hiroshi Okazaki  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Shoichi Narahashi  
3rd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
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Speaker Author-1 
Date Time 2011-03-03 11:25:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2010-156 
Volume (vol) vol.110 
Number (no) no.447 
Page pp.23-26 
#Pages 4 
Date of Issue 2011-02-24 (MW) 

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