Title :
Design of dual-band filters utilizing new branch-line resonators
Author :
Deng, Pu-Hua ; Chiu, Pin-Tang ; Yang, Chuan-Ping ; Dai, Li-Chi
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Kaohsiung, Kaohsiung, Taiwan
Abstract :
In this study, a new branch-line resonator is presented for dual-band filter design. By reducing one open stub of the conventional branch-line resonator, the filter structure will be simplified. Besides, since the external quality factor and center frequencies of two passbands can also be designed individually, the design procedure is therefore simplified. For demonstration, two dual-band filters have been designed and fabricated. The measured results are in good agreement with simulations.
Keywords :
band-pass filters; resonator filters; branch-line resonators; center frequency; conventional branch-line resonator; design procedure; dual-band filter design; external quality factor; filter structure; passbands; Band pass filters; Dual band; Matched filters; Microstrip filters; Microwave filters; Passband; Resonator filters; Branch-line resonator; dual-band filter; microstrip; stepped-impedance resonator;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
