Title :
Mixed modes dielectric resonator loaded cavity filters
Author :
Ji-Fuh Liang ; Zaki, K.A. ; Atia, A.E.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
Abstract :
A novel configuration of dielectric loaded cavity filters is presented. The new filter combines the superior spurious free performance of TE/sub 01/ mode ring dielectric resonators with the advantage of HE/sub 11/ dual-mode dielectric loading. Resonant frequency and field distributions of each cavity is computed by rigorous mode-matching technique. The fields are used to compute the coupling between cavities by small aperture approximation based on formulae modified by Levy. An L-band 6-pole quasi-elliptic function filter is designed, constructed and tested. The experimental results verify the advantage of this new type of filter.<>
Keywords :
approximation theory; cavity resonators; dielectric resonators; microwave filters; numerical analysis; HE/sub 11/ dual-mode dielectric loading; L-band 6-pole quasi-elliptic function filter; Levy; TE/sub 01/ mode ring dielectric resonators; cavities coupling; field distributions; filter construction; filter design; filter testing; mixed modes dielectric resonator loaded cavity filters; resonant frequency; rigorous mode-matching technique; small aperture approximation; spurious free performance; Apertures; Dielectrics; Distributed computing; Helium; L-band; Resonant frequency; Resonator filters; Tellurium; Testing;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335529
