Title :
Dielectric combline resonators and filters
Author :
Wang, Chi ; Zaki, Kawthar A. ; Atia, Ali E. ; Dolan, Tim G.
Author_Institution :
Celware Div., Radio Freq. Syst. Inc., Marlboro, NJ, USA
fDate :
12/1/1998 12:00:00 AM
Abstract :
The dielectric combline resonator combines the merits of the metallic combline and dielectric loaded resonator. By replacing the inner conductor of the conventional combline resonator by a high E, dielectric rod, higher unloaded Q can be expected. Resonant frequency, unloaded Q, and coupling coefficient of the resonator are obtained by a rigorous mode-matching method. An eight-pole elliptic-function dielectric combline resonator filter was designed and tested. Measured frequency responses verify the theory
Keywords :
Q-factor; comb filters; dielectric resonator filters; elliptic filters; frequency response; mode matching; coupling coefficient; dielectric combline resonators; eight-pole elliptic-function filter; frequency responses; resonant frequency; rigorous mode-matching method; unloaded Q; Coaxial components; Conductors; Costs; Dielectric losses; Dielectric materials; Microwave filters; Mode matching methods; Performance loss; Resonant frequency; Resonator filters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
