Title :
Printed-circuit realization of a tapped combline bandpass filter
Author :
Tzuang, C.K.C. ; Wen-Teng Lo
Author_Institution :
Inst. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The design of a tapped combline bandpass filter realized by planar or quasi-planar commensurate length transmission lines is presented. The design procedure takes into account the composite effects of multiple quasi-TEM (transverse electromagnetic), modes, couplings between nonadjacent microstrips, and cove height. An 8-12-GHz bandpass prototype has been built and tested. Its performance agrees favorably with the theoretical result.<>
Keywords :
band-pass filters; microwave filters; passive filters; printed circuit design; strip line components; waveguide theory; 8 to 12 GHz; SHF; couplings between nonadjacent microstrips; cove height; design procedure; multiple quasi TEM modes; printed circuit realisation; prototype; quasi-planar commensurate length transmission lines; tapped combline bandpass filter; transverse electromagnetic; Band pass filters; Capacitors; Chebyshev approximation; Circuit synthesis; Equivalent circuits; Filtering theory; Microstrip filters; Prototypes; Resonator filters; Transmission line matrix methods;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99540
