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Paper Abstract and Keywords
Presentation 2019-01-18 15:15
Design of Quasi-Millimeter-Wave SIW Bandpass Filter with Transmission Zeros Using TE102 Mode for Negative Coupling
Yuta Shimizu, Masataka Ohira, Zhewang Ma (Saitama Univ) ED2018-88 MW2018-155
Abstract (in Japanese) (See Japanese page) 
(in English) A quasi-millimeter-wave band substrate integrated waveguide (SIW) bandpass filter with a fractional bandwidth greater than 10% is proposed in this paper to realize high skirt selectivity because of transmission zeros. An SIW resonator has a relatively high unloaded Q factor, but the attenuation at stopbands is degraded by both a strong coupling required for fractional bandwidth of 10% and an intrinsic highpass response of SIW. Thus, transmission zeros need to be generated at passband edges, but in a conventional approach the radiation loss occurs when a slot structure is employed for negative coupling. In the proposed SIW filter, a box-coupling configuration is introduced, which is simply realized with even-mode resonance of TE101 mode and odd-mode one of TE102 mode. The effectiveness of the proposed filter configuration is verified through design, fabrication, and measurement of a fourth-order SIW filter. To enhance the attenuation level at upper stopband, furthermore, we design a sixth-order SIW filter having two transmission zeros at an upper passband edge, of which the validity is also shown by numerical evaluations using EM simulator.
Keyword (in Japanese) (See Japanese page) 
(in English) Quasi millimeter-wave band / substrate integrated waveguide (SIW) / bandpass filters / transmission zeros / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 403, MW2018-155, pp. 103-108, Jan. 2019.
Paper # MW2018-155 
Date of Issue 2019-01-10 (ED, MW) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 ED2018-88 MW2018-155

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) Design of Quasi-Millimeter-Wave SIW Bandpass Filter with Transmission Zeros Using TE102 Mode for Negative Coupling 
Sub Title (in English)  
Keyword(1) Quasi millimeter-wave band  
Keyword(2) substrate integrated waveguide (SIW)  
Keyword(3) bandpass filters  
Keyword(4) transmission zeros  
1st Author's Name Yuta Shimizu  
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  
3rd Author's Affiliation Saitama University (Saitama Univ)
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Date Time 2019-01-18 15:15:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-ED2018-88,IEICE-MW2018-155 
Volume (vol) IEICE-118 
Number (no) no.402(ED), no.403(MW) 
Page pp.103-108 
#Pages IEICE-6 
Date of Issue IEICE-ED-2019-01-10,IEICE-MW-2019-01-10 

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