Paper Abstract and Keywords |
Presentation |
2015-06-25 13:40
Design of Compact Ultra Wide-Band Bandpass Filters Using Short- Circuited Stubs with Improved Stopband Characteristics Ryuhi Hamano, Zhewang Ma, Masataka Ohira (Saitama Univ.), Chun-Ping Chen, Tetsuo Anada (Kanagawa Univ.) MW2015-39 Link to ES Tech. Rep. Archives: MW2015-39 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, a microstrip ultra-wideband bandpass filter (UWB BPF) using short-circuited stubs is designed based on a theoretical transfer function and an optimal algorithm. Then the UWB BPF is folded to reduce its size and cascaded with a broadband band-stop filter (BSF) to suppress spurious resonances at high frequencies. The filter is fabricated and its measured frequency response agrees well with the design prediction, showing a midband frequency of 6.85GHz, a fractional bandwidth of about 93%, and insertion loss of 1.4dB at the center frequency. The maximum reflection loss is about 10dB and the variation of group delay is less than 0.5ns in the passband. The total structure of the filter is compact, and the FCC’s UWB spectral musk is satisfied well up over a wide frequency range up to 28GHz. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
UWB / bandpass filter / bandstop filter / microstrip line / short-circuited stubs / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 115, MW2015-39, pp. 7-12, June 2015. |
Paper # |
MW2015-39 |
Date of Issue |
2015-06-18 (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 |
MW2015-39 Link to ES Tech. Rep. Archives: MW2015-39 |
Conference Information |
Committee |
MW |
Conference Date |
2015-06-25 - 2015-06-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Institute of Industrial Promotion Kawasaki |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Microwave Signal Generation and Measurement / Microwave Technologies |
Paper Information |
Registration To |
MW |
Conference Code |
2015-06-MW |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Design of Compact Ultra Wide-Band Bandpass Filters Using Short- Circuited Stubs with Improved Stopband Characteristics |
Sub Title (in English) |
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Keyword(1) |
UWB |
Keyword(2) |
bandpass filter |
Keyword(3) |
bandstop filter |
Keyword(4) |
microstrip line |
Keyword(5) |
short-circuited stubs |
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1st Author's Name |
Ryuhi Hamano |
1st Author's Affiliation |
Saitama University (Saitama Univ.) |
2nd Author's Name |
Zhewang Ma |
2nd Author's Affiliation |
Saitama Universit (Saitama Univ.) |
3rd Author's Name |
Masataka Ohira |
3rd Author's Affiliation |
Saitama Universit (Saitama Univ.) |
4th Author's Name |
Chun-Ping Chen |
4th Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
5th Author's Name |
Tetsuo Anada |
5th Author's Affiliation |
Kanagawa University (Kanagawa Univ.) |
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Speaker |
Author-1 |
Date Time |
2015-06-25 13:40:00 |
Presentation Time |
25 minutes |
Registration for |
MW |
Paper # |
MW2015-39 |
Volume (vol) |
vol.115 |
Number (no) |
no.115 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2015-06-18 (MW) |