Title :
Tunable filter based on ferroelectric films
Author :
Buslov, O.U.Y. ; Keys, V.N. ; Kozyrev, A.B. ; Dovgan´, D.P. ; Gaidukov, A.M.
Author_Institution :
St. Petersburg Nat. Electrotechnical Univ., Russia
Abstract :
Microwave four-pole tunable waveguide filter containing eight planar SrTiO/sub 3/ film ferroelectric capacitors is presented. The frequency tuning of the filter is due to the variation of ferroelectric capacitance with dc controlling voltage. Parameters of the filter are following: the central frequency is 27 GHz, the band width for 1 dB level is 2.7%, the range of tuning is 1.1 GHz, insertion losses are not more than 4.2 dB.
Keywords :
circuit tuning; ferroelectric capacitors; ferroelectric thin films; microwave filters; strontium compounds; waveguide filters; 27 GHz; 4.2 dB; SrTiO/sub 3/; bandwidth; central frequency; frequency tuning; insertion loss; microwave four-pole tunable waveguide filter; planar SrTiO/sub 3/ film ferroelectric capacitor; tuning range;
Conference_Titel :
Microwave and Telecommunication Technology, 2001. CriMiCo 2001. 11th International Conference on
Conference_Location :
Sevastopol, Crimea, Ukraine
Print_ISBN :
966-7968-00-6
