Title :
New Type of Planar Resonators with High Quality Factor and Their Applications for MW Pass-Band Filters
Author :
Keys, V.N. ; Kozyrev, A.B. ; Hollman, E.K. ; Khazov, M.L. ; Razumov, S.V. ; Rozenbaum, L.B. ; Gusev, G.S.
Author_Institution :
St. Petersburg Electrotechnical University, St. Petersburg, Prof Popov str., 5. 197376, Russia. Tel/Fax +7(812)234-4809
Abstract :
New type of coplanar ring resonator designed on base so-called "nonregular included" line is considered. Nonregular line (NRL) resonators demonstrate the higher quality factor and less dimensions in comparison with conventional ring resonators, and can be used in pass-band filters for cellular phone communication systems (0.8-2GHz). Formulas allowing to define the resonance frequency and Q-factor of NRL resonators are presented. Data of the experimental research of a set of NRL resonators with different sizes and materials (copper and superconductive films) are in a good agreement with theoretical results. The power handling capability for superconductive NRL resonators is estimated. Narrow-band four-pole copper film and high-Tc superconducting film filters based on NRL resonators were designed and tested.
Keywords :
Cellular phones; Communication systems; Copper; Optical ring resonators; Q factor; Resonance; Resonator filters; Superconducting films; Superconducting filters; Superconductivity;
Conference_Titel :
Microwave Conference, 1997. 27th European
Conference_Location :
Jerusalem, Israel
DOI :
10.1109/EUMA.1997.337891
