Paper Abstract and Keywords |
Presentation |
2015-05-29 16:50
Design of Microstrip Bandpass Filter with Transmission Zeros Using Half-wavelength Resonator Transversal Array Toshiki Kato, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2015-37 Link to ES Tech. Rep. Archives: MW2015-37 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have reported a new design method for multi-mode bandpass filters with transmission zeros (TZs) based on a synthesis theory of transversal array filters. However, there is a problem that external Q factors of multiple resonances are very hard to control independently, since multiple resonant modes are excited with a single feeding line. This paper proposes a new and simple structure of microstrip bandpass filter having TZs, which is constructed by the parallel arrangement of even- and odd-mode microstrip half-wavelength resonators. This filter structure makes it possible to easily control the external Q factor of each resonator, thereby generating TZs at arbitrary finite frequency positions with the control of external Q factors without using any non-adjacent couplings. As an example, we design a bandpass filter with 2-GHz center frequency, 6% bandwidth in passband, and four TZs located very near the passband, resulting in very high skirt selectivity. Finally, the validity of the pro-posed structure is verified by the comparison between the simulated and measured results. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Bandpass filters / transversal array filters / transmission zeros / even- and odd-mode resonances / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 66, MW2015-37, pp. 93-98, May 2015. |
Paper # |
MW2015-37 |
Date of Issue |
2015-05-21 (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 |
MW2015-37 Link to ES Tech. Rep. Archives: MW2015-37 |
Conference Information |
Committee |
MW |
Conference Date |
2015-05-28 - 2015-05-29 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
The Univ. of Electro-Commun. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave Technologies |
Paper Information |
Registration To |
MW |
Conference Code |
2015-05-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of Microstrip Bandpass Filter with Transmission Zeros Using Half-wavelength Resonator Transversal Array |
Sub Title (in English) |
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Keyword(1) |
Bandpass filters |
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transversal array filters |
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transmission zeros |
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even- and odd-mode resonances |
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1st Author's Name |
Toshiki Kato |
1st Author's Affiliation |
Saitama University (Saitama Univ.) |
2nd Author's Name |
Masataka Ohira |
2nd Author's Affiliation |
Saitama University (Saitama Univ.) |
3rd Author's Name |
Zhewang Ma |
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Saitama University (Saitama Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-05-29 16:50:00 |
Presentation Time |
30 minutes |
Registration for |
MW |
Paper # |
MW2015-37 |
Volume (vol) |
vol.115 |
Number (no) |
no.66 |
Page |
pp.93-98 |
#Pages |
6 |
Date of Issue |
2015-05-21 (MW) |
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