Title :
Design of narrow-band tunable band-pass filters based on dual mode SrTiO/sub 3/ disc resonators
Author :
Deleniv, A. ; Eriksson, A. ; Gevorgian, S.
Author_Institution :
Dept. of Microelectron., Chalmers Univ. of Technol., Gotenborg, Sweden
Abstract :
Design of four-pole band-pass tunable filters based on two dual mode STO disc resonators (0.5 mm thick, 7.0 mm in diameter) is reported. Chebishev filters without and with transmission zeroes are realized utilizing two degenerate TM/sub 110/ modes. Experimentally obtained Q-factor and resonant frequency of the disc resonators are used in filter simulations. The filters are designed for operation at 60 K with center frequency 0.5 GHz and bandwidth less than 2.0%. The tunability (fractional change in center frequency) of the filters is about 8%.
Keywords :
Chebyshev filters; Q-factor; band-pass filters; dielectric resonator filters; poles and zeros; strontium compounds; 0.5 GHz; 60 K; Chebyshev filter; Q-factor; SrTiO/sub 3/; dual-mode STO disc resonator; four-pole narrow-band tunable band-pass filter; resonant frequency; transmission zeroes; Band pass filters; Crystalline materials; Dielectrics; High temperature superconductors; Microwave filters; Narrowband; Permittivity; Q factor; Resonant frequency; Resonator filters;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011866
