Title :
Frequency-tunable microwave dielectric resonator
Author :
Poplavko, Yuri M. ; Prokopenko, Yuriy V. ; Molchanov, Vitaliy I. ; Dogan, Aydin
Author_Institution :
Fac. of Electron., Nat. Tech. Univ., Kiev, Ukraine
fDate :
6/1/2001 12:00:00 AM
Abstract :
A new type of tunable composite dielectric resonator (DR) has been designed, In the structure of this DR, a controllable insert was used to change the resonance frequency (f0) in a wide spectral range, while preserving a high quality factor. The simplest of proposed resonance systems for obtaining f0 control is a microwave DR crossed by an air slot, which is controlled by fast piezoelectric actuator. Analytical and experimental techniques were employed for optimization of the composite DR structure. It has been observed that this device can create a change up to 20%-25% in its resonance frequency
Keywords :
Q-factor; dielectric resonators; piezoelectric actuators; tuning; air slot; composite microwave dielectric resonator; controllable insert; design optimization; frequency tuning; piezoelectric actuator; quality factor; resonant frequency; Ceramics; Control systems; Dielectric materials; Microwave devices; Microwave filters; Q factor; Resonance; Resonant frequency; Resonator filters; Tuning;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
