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Paper Abstract and Keywords
Presentation 2019-01-17 10:00
Development of Electromagnetically-Coupled Half-Wavelength Resonator Filter
Ayaka Shimizu, Toshio Ishizaki (Ryukoku Univ.) ED2018-70 MW2018-137
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, miniaturization and high performance of base station filters are regarded as important. In a filter, by forming attenuation poles in the vicinity of pass band, attenuation outside the pass band becomes steep and high selectivity is obtained. As a result, it is possible to create a filter having equivalent performance with a smaller number of stages. Thus, filter can be miniaturized. This time, we investigated a filter that generates multiple attenuation poles using a coupled-line half-wavelength resonator. Conventional filters often form attenuation poles by cross-coupling, but this filter creates attenuation poles by utilizing electromagnetic coupling between resonators. In this report, the design method of electromagnetically-coupled half-wavelength resonator filter is explained, and the design examples and the prototype filters with concrete filter specifications are shown to demonstrate the effectiveness of this filter.
Keyword (in Japanese) (See Japanese page) 
(in English) Base-station filter / Attenuation pole / Half-wavelength / Coupled-resonator / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 403, MW2018-137, pp. 7-12, Jan. 2019.
Paper # MW2018-137 
Date of Issue 2019-01-10 (ED, 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 ED2018-70 MW2018-137

Conference Information
Committee MW ED  
Conference Date 2019-01-17 - 2019-01-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Hitachi, Central Research Lab. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Compound semiconductor, High speed and High frequency devices/Microwave technologies 
Paper Information
Registration To MW 
Conference Code 2019-01-MW-ED 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Electromagnetically-Coupled Half-Wavelength Resonator Filter 
Sub Title (in English)  
Keyword(1) Base-station filter  
Keyword(2) Attenuation pole  
Keyword(3) Half-wavelength  
Keyword(4) Coupled-resonator  
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1st Author's Name Ayaka Shimizu  
1st Author's Affiliation Ryukoku University (Ryukoku Univ.)
2nd Author's Name Toshio Ishizaki  
2nd Author's Affiliation Ryukoku University (Ryukoku Univ.)
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Speaker Author-1 
Date Time 2019-01-17 10:00:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # ED2018-70, MW2018-137 
Volume (vol) vol.118 
Number (no) no.402(ED), no.403(MW) 
Page pp.7-12 
#Pages 6 
Date of Issue 2019-01-10 (ED, MW) 

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