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Paper Abstract and Keywords
Presentation
Design of Compact Wideband Bandstop Filters Using Microstrip Ring Structures
Toshiki Tabei, Zhewang Ma, Masataka Ohira (Saitama Univ.)   エレソ技報アーカイブはこちら
Abstract (in Japanese) (See Japanese page) 
(in English) A novel compact wideband bandstop filter (BSF) is proposed by using microstrip ring structure with stepped impedance lines. The equivalent circuit of the BSF is analyzed, and its transmission and reflection characteristics are obtained. With appropriate definition of the realizable reflection function of the BSF and an optimization function, the circuit parameters of the BSF are solved by using an optimization algorithm. As a result, the designed BSF can realize a general Chebyshev frequency response with three transmission zeros in its stopband and six reflection zeros in its passband. As an example, a BSF with a fractional bandwidth of 30% and a minimum stopband rejection of 30.0 dB is designed, fabricated, and measured, and the desired wide stopband, large stopband rejection, low passband insertion loss, and sharp skirt property are verified.
Keyword (in Japanese) (See Japanese page) 
(in English) Wideband bandstop filter / general Chebyshev frequency response / microstrip ring structure / stepped impedance / / / /  
Reference Info. IEICE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee MW  
Conference Date 2019-06-26 - 2019-06-28 
Place (in Japanese) (See Japanese page) 
Place (in English) RUS, Bangkok, Thailand 
Topics (in Japanese) (See Japanese page) 
Topics (in English) 2019 Thailand-Japan MicroWave (TJMW2019) 
Paper Information
Registration To MW 
Conference Code 2019-06-MW 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design of Compact Wideband Bandstop Filters Using Microstrip Ring Structures 
Sub Title (in English)  
Keyword(1) Wideband bandstop filter  
Keyword(2) general Chebyshev frequency response  
Keyword(3) microstrip ring structure  
Keyword(4) stepped impedance  
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1st Author's Name Toshiki Tabei  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Zhewang Ma  
2nd Author's Affiliation Saitama University (Saitama Univ.)
3rd Author's Name Masataka Ohira  
3rd Author's Affiliation Saitama University (Saitama Univ.)
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