Title :
14 GHz tunable filter based on waveguide-dielectric resonators
Author :
Buslov, O.Yu. ; Keys, V.N. ; Kozyrev, A.B. ; Kotelnikov, I.V.
Author_Institution :
St. Petersburg Nat. Electrotechnical Univ., Russia
Abstract :
Described are microwave four-pole waveguide filters electronically tuned by planar (Ba,Sr)TiO/sub 3/ film ferroelectric capacitors. The filters are tuned due to variation of ferroelectric capacitance with DC controlling voltage. Parameters of K/sub u/-band filters are the following: bandwidth for 1 dB level is /spl sim/0.8%, range of tuning is 260 MHz (/spl sim/1.8%); insertion losses are less than 3 dB.
Keywords :
barium compounds; dielectric resonator filters; ferroelectric capacitors; microwave filters; strontium compounds; thin film capacitors; titanium compounds; waveguide filters; (BaSr)TiO/sub 3/; 14 GHz; 260 MHz; DC controlling voltage; ferroelectric capacitors; insertion loss; microwave four-pole waveguide filters; waveguide-dielectric resonators; Bandwidth; Capacitance; Capacitors; Ferroelectric films; Ferroelectric materials; Insertion loss; Microwave filters; Planar waveguides; Resonator filters; Voltage control;
Conference_Titel :
Microwave and Telecommunication Technology, 2003. CriMiCo 2003. 13th International Crimean Conference
Conference_Location :
Sevastopol, Crimea, Ukraine
Print_ISBN :
966-7968-26-X
DOI :
10.1109/CRMICO.2003.158909
