Paper Abstract and Keywords |
Presentation |
2011-10-07 16:10
Theoretical Design of Wideband Filter Using Parallel-Coupled-Three-Line-Unit with Attenuation Poles Chun-Ping Chen, Ryouhei IInuma, Junya Takahashi, Tetsuo Anada (Kanagawa Univ.), Zhewang Ma (Saitama Univ.) EST2011-82 Link to ES Tech. Rep. Archives: EST2011-82 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
To implement wideband bandpass filters with improved skirt-selectivity and out-band characteristics, a new parallel-coupled three-line unit with double short-circuited stubs symmetrically-loaded at the center line is proposed. After revealing its work mechanism, an efficient filter-design-scheme is correspondingly proposed for the proposed structure. Firstly, based on synthesis theory, a wideband passband filter consisting of a parallel-coupled line structure and two short-circuited stubs loaded in the input- and output- ports is designed. Furthermore, by putting a properly-designed 3/4-wavelength stepped-impedance resonator (SIR) in between the parallel-coupled lines, two attenuation poles are then realized at the frequencies very close to the cutoff ones. Accordingly, the roll-off characteristics of the filter are significantly-improved. To validate the proposed techniques, a wideband filter with a bandwidth of 3-5GHz (FBW:50%) was designed simulated. The simulated frequency responses of the filter agree well with the theoretical ones, which validates the effectiveness of the newly-proposed three-line unit and the corresponding design scheme. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Ultra-wideband (UWB) / Attenuation poles / Steep skirt selectivity / Out-band / Bandpass filter(BPF) / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 224, EST2011-82, pp. 95-100, Oct. 2011. |
Paper # |
EST2011-82 |
Date of Issue |
2011-09-29 (EST) |
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 |
EST2011-82 Link to ES Tech. Rep. Archives: EST2011-82 |
Conference Information |
Committee |
EST |
Conference Date |
2011-10-06 - 2011-10-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Nagasaki Prefectural Art Museum |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
EST |
Conference Code |
2011-10-EST |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Theoretical Design of Wideband Filter Using Parallel-Coupled-Three-Line-Unit with Attenuation Poles |
Sub Title (in English) |
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Keyword(1) |
Ultra-wideband (UWB) |
Keyword(2) |
Attenuation poles |
Keyword(3) |
Steep skirt selectivity |
Keyword(4) |
Out-band |
Keyword(5) |
Bandpass filter(BPF) |
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1st Author's Name |
Chun-Ping Chen |
1st Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
2nd Author's Name |
Ryouhei IInuma |
2nd Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
3rd Author's Name |
Junya Takahashi |
3rd Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
4th Author's Name |
Tetsuo Anada |
4th Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
5th Author's Name |
Zhewang Ma |
5th Author's Affiliation |
Saitama University (Saitama Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-10-07 16:10:00 |
Presentation Time |
25 minutes |
Registration for |
EST |
Paper # |
EST2011-82 |
Volume (vol) |
vol.111 |
Number (no) |
no.224 |
Page |
pp.95-100 |
#Pages |
6 |
Date of Issue |
2011-09-29 (EST) |
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