Title :
Dual-plane coupled-line microwave filter
Author :
Yao, S.-J. ; Bonetti, R.R.
Author_Institution :
MIT, Cambridge, MA, USA
Abstract :
The realization of a bandpass elliptic filter which employs quasi-TEM (transverse electromagnetic) resonators at different planes coupled through small apertures is described. Bethe´s small-hole diffraction theory is used to predict the aperture couplings. An experimental filter illustrates the concept and shows that the configuration is suitable for high-temperature-superconducting thin-film implementation. An 80-MHz bandwidth elliptic filter centered at 1.1 GHz was designed according to the procedure described here.<>
Keywords :
band-pass filters; microwave filters; solid-state microwave circuits; superconducting microwave devices; superconducting thin films; 1.1 GHz; 80 MHz; Bethe´s small-hole diffraction theory; aperture couplings; bandpass elliptic filter; coupled-line microwave filter; high-temperature-superconducting thin-film; quasi-TEM; Apertures; Band pass filters; Coupling circuits; Magnetic separation; Microstrip filters; Microstrip resonators; Microwave filters; Planar waveguides; Resonator filters; Superconducting filters;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276915
