Title :
A novel dual-band bandpass filter using microstrip stub-loaded two-mode resonators with source and load coupling
Author :
He, Wenqing ; Ma, Zhewang ; Chen, Chun-Ping ; Anada, Tetsuo ; Kobayashi, Yoshio
Author_Institution :
Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai
Abstract :
In this paper, a compact microstrip dual-band bandpass filter (BPF) using stub-loaded two-mode resonators is developed. The midband frequencies of the two passbands can be adjusted separately. Furthermore, four transmission zeros are yield in the stopband of the filter by introducing direct coupling between the source and load of the filter. Significantly improved skirt properties of the dual-passbands are accomplished, and very wide stopbands are obtained.
Keywords :
band-pass filters; band-stop filters; microstrip filters; resonator filters; dual-band bandpass filter; load coupling; microstrip stub-loaded two-mode resonators; source coupling; stopband; Band pass filters; Couplings; Dual band; Feeds; Filtering theory; Frequency; Microstrip filters; Microstrip resonators; Passband; Resonator filters;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958240
