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Paper Abstract and Keywords
Presentation 2017-12-20 10:10
Development of compact eight-pole HTS tri-band bandpass filter
Takahiro Unno, Naoto Sekiya (Yamanashi Univ.) MW2017-155
Abstract (in Japanese) (See Japanese page) 
(in English) We developed a high-temperature superconducting (HTS) compact 8-pole tri-band bandpass filter (TBPF) using a new feeding structure. It combines a dual-band bandpass filter that uses stub-loaded meander line open-loop resonators and single-band bandpass filter which uses meander line open-loop resonators. The proposed feedline structure enables the external quality factor of each passbands to be adjusted by changing four physical parameters, namely widths and lengths of the feedline. In addition, we designed the coupling coefficients of the three passbands using four types of waveguides. The center frequencies of the three passbands were 1.5, 2.0, and 2.5 GHz, respectively, with fractional bandwidths of 2.0%. The TBPF was fabricated using double-sided YBa2Cu3O7 thin film on a 34.0 × 33.0 × 0.5 mm Al2O3 substrate. The measured frequency responses of the filter match the simulated ones well.
Keyword (in Japanese) (See Japanese page) 
(in English) high-temperature superconductor / tri-band bandpass filter / stub loaded resonator / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 366, MW2017-155, pp. 77-82, Dec. 2017.
Paper # MW2017-155 
Date of Issue 2017-12-12 (MW) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 2017-12-19 - 2017-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To MW 
Conference Code 2017-12-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of compact eight-pole HTS tri-band bandpass filter 
Sub Title (in English)  
Keyword(1) high-temperature superconductor  
Keyword(2) tri-band bandpass filter  
Keyword(3) stub loaded resonator  
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1st Author's Name Takahiro Unno  
1st Author's Affiliation Yamanashi University (Yamanashi Univ.)
2nd Author's Name Naoto Sekiya  
2nd Author's Affiliation Yamanashi University (Yamanashi Univ.)
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Speaker Author-1 
Date Time 2017-12-20 10:10:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2017-155 
Volume (vol) vol.117 
Number (no) no.366 
Page pp.77-82 
#Pages 6 
Date of Issue 2017-12-12 (MW) 

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