Title :
Generalized parallel coupled line and interdigital filters with unusually broad upper stop bandwidth
Author :
Fathelbab, Wael M.
Author_Institution :
RS Microwave Company Inc., 22 Park Place, PO Box 273, Butler, NJ 07405, USA
Abstract :
This paper presents the design of parallel coupled line and interdigital filters that realize broad upper stop bandwidth. Enhancement of the stopband is achieved due to the fact that the proposed filters comprise new bandpass networks each made of pairs of asymmetrically coupled stepped-impedance resonators. Several parallel coupled line and interdigital filters are simulated utilizing HFSS and demonstrate improvement in the upper stop bandwidth.
Keywords :
Band pass filters; Bandwidth; Equivalent circuits; Filtering theory; Microwave circuits; Microwave filters; Resonator filters; Asymmetrical stepped-impedance resonators; bandpass filters; broad upper stop bandwidth; circuit synthesis; suspended substrate stripline;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6258340
