Title :
Design of wide single-/dual-passband microstrip bandpass filters with comb-loaded resonators
Author :
Tang, Ching-Wen ; Tseng, Chien-Tai ; Hsu, Yen-Kuo
Author_Institution :
Dept. of Commun. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan
Abstract :
Novel microstrip bandpass filters with comb-loaded resonators are proposed. With comb-loaded resonators, the proposed bandpass filter can have a wide passband. In particular, dual passbands show up around 2.45 GHz and 5.75 GHz and their bandwidth is 780 MHz. In addition, by properly controlling passband´s coupling coefficient, only one passband of the dual-passband bandpass filter will be generated in the lower/higher frequency band. Finally, the agreement between measured results and the theoretical prediction validates the proposed structure.
Keywords :
UHF filters; band-pass filters; microstrip filters; microwave filters; resonator filters; bandwidth 780 MHz; comb loaded resonator; dual pass-band microstrip bandpass filters; frequency 2.45 GHz; frequency 5.75 GHz; single pass-band microstrip bandpass filters; Band pass filters; Dual band; Filtering theory; Fingers; Microwave filters; Passband; Resonator filters; Wide-passband bandpass filter; bandpass filter; comb-loaded resonator;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
