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Paper Abstract and Keywords
Presentation 2009-03-06 09:10
SIR type band pass filter with wide suppression band width
Somboon Theerawisitpong (Nippon Inst. of Tech.), Masato Ogue, Fumiya Okawa (National Defense Academy), Toshitatsu Suzuki (Nippon Inst. of Tech.), Toshihisa Kamei (National Defense Academy), Noboru Morita (Nippon Inst. of Tech.), Yozo Utsumi (National Defense Academy) MW2008-189
Abstract (in Japanese) (See Japanese page) 
(in English) We developed a bandpass filter using folded stepped-impedance resonators where center frequency is 1.95GHz with 60MHz bandwidth for WCDMA-FDD uplink band in Japan cellular system. A new even-mode harmonics suppression technique has been proposed in order to accomplish wide harmonics suppressed band having high insertion loss 3-step Tchebycheff bandpass filters are designed and fabricated. The experimental results on pass band and harmonics suppressed band is satisfied as compared with simulation. The insertion loss of suppressed band greater than 40dB from 2.3 to 9.1 GHz and unloaded quality factor is about 320.
Keyword (in Japanese) (See Japanese page) 
(in English) microstrip filter / Stepped-Impedance Resonator / Harmonic Suppression / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 452, MW2008-189, pp. 1-5, March 2009.
Paper # MW2008-189 
Date of Issue 2009-02-27 (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)
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Conference Information
Committee MW  
Conference Date 2009-03-06 - 2009-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) NHK Science & Technical Research Lab. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MW 
Conference Code 2009-03-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) SIR type band pass filter with wide suppression band width 
Sub Title (in English)  
Keyword(1) microstrip filter  
Keyword(2) Stepped-Impedance Resonator  
Keyword(3) Harmonic Suppression  
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1st Author's Name Somboon Theerawisitpong  
1st Author's Affiliation Nippon Institute of Technology (Nippon Inst. of Tech.)
2nd Author's Name Masato Ogue  
2nd Author's Affiliation National Defense Academy (National Defense Academy)
3rd Author's Name Fumiya Okawa  
3rd Author's Affiliation National Defense Academy (National Defense Academy)
4th Author's Name Toshitatsu Suzuki  
4th Author's Affiliation Nippon Institute of Technology (Nippon Inst. of Tech.)
5th Author's Name Toshihisa Kamei  
5th Author's Affiliation National Defense Academy (National Defense Academy)
6th Author's Name Noboru Morita  
6th Author's Affiliation Nippon Institute of Technology (Nippon Inst. of Tech.)
7th Author's Name Yozo Utsumi  
7th Author's Affiliation National Defense Academy (National Defense Academy)
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Speaker Author-2 
Date Time 2009-03-06 09:10:00 
Presentation Time 20 minutes 
Registration for MW 
Paper # MW2008-189 
Volume (vol) vol.108 
Number (no) no.452 
Page pp.1-5 
#Pages 5 
Date of Issue 2009-02-27 (MW) 

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