Title :
Dual-mode filters with conductor-loaded dielectric resonators
Author :
Hunter, Ian C. ; Rhodes, J. David ; Dassonville, Vanessa
Author_Institution :
Filtronic Components Ltd., Shipley, UK
fDate :
12/1/1999 12:00:00 AM
Abstract :
In this paper, a new class of dual-mode microwave filters is presented. These devices use conductor-loaded dielectric resonators with unloaded Q-factors of 2000-8000 achievable in half the physical size of TEM filters and with good spurious performance. The basic properties of this resonator have been examined with the aid of a finite-element field-analysis package. Fundamental design rules for bandpass filters have been developed. A design example of a transmit filter for a ground-signal-metal cellular-radio base station is demonstrated
Keywords :
band-pass filters; cellular radio; dielectric resonator filters; finite element analysis; waveguide filters; bandpass filters; conductor-loaded dielectric resonators; design rules; dual-mode filters; finite-element field-analysis package; ground-signal-metal cellular-radio base station; physical size; spurious performance; transmit filter; unloaded Q-factors; Band pass filters; Ceramics; Coaxial components; Conducting materials; Dielectric materials; Finite element methods; Microwave filters; Programmable control; Resonance; Resonator filters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
