Title :
Tunable high-Q dielectric loaded resonator and filter
Author :
Wang, Chl ; Blair, Williams D.
Author_Institution :
Radio Frequency Syst. Inc., Marlboro, NJ, USA
Abstract :
A novel type of tunable high Q dielectric loaded resonator and its application to filters and multiplexers are presented. The tunable dielectric loaded resonator has high unloaded Q, wide tuning range, and high temperature stability by using the ring shape DR and dielectric tuning element. The tuning properties of the resonator, such as tuning range, spurious mode, unloaded Q, and effect on couplings are investigated. Several PCS band filters and multiplexers for CDMA base station applications were designed and tested. Excellent measured frequency responses were obtained.
Keywords :
Q-factor; circuit stability; circuit tuning; code division multiple access; dielectric resonator filters; frequency response; multiplexing equipment; personal communication networks; CDMA; PCS band filters; base station applications; couplings; dielectric loaded resonator; dielectric tuning element; filters; high Q resonator; measured frequency responses; multiplexers; ring shape DR; spurious mode; temperature stability; tunable resonator; tuning range; unloaded Q; Base stations; Dielectrics; Multiaccess communication; Multiplexing; Personal communication networks; Resonator filters; Shape; Stability; Temperature distribution; Tuning;
Conference_Titel :
Radio and Wireless Conference, 2002. RAWCON 2002. IEEE
Print_ISBN :
0-7803-7458-4
DOI :
10.1109/RAWCON.2002.1030164
