Title :
Design of a quasi-planar broadside end-coupled bandpass filter
Author :
Tzuang, C.-K.C. ; Yit-Chyun Chiang ; Shyang Su
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The design method circumvents the problem of bandwidth limitation imposed on the conventional end-coupled filter realized by coplanar strips. To realize a filter with such a complicated shape, an accurate tridimensional deembedding of the filter discontinuity problem based on the quasi-TEM (transverse electromagnetic) variational spectral-domain approach is developed. This approach leads to the design of a 30% bandwidth bandpass filter which agrees favorably with the measured performance.<>
Keywords :
band-pass filters; microwave filters; variational techniques; waveguide components; bandwidth limitation; filter discontinuity problem; quasi-TEM; quasi-planar broadside end-coupled bandpass filter; tridimensional deembedding; variational spectral-domain approach; Band pass filters; Bandwidth; Capacitance; MMICs; Microelectronics; Microstrip; Microwave filters; Microwave integrated circuits; Resonator filters; Strips;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99606
