Title :
Power Handling Capability of Ferroelectric Film Varactors and Tunable Microwave Devices
Author :
Samoilova, T. ; Ivanov, A. ; Kozyrev, A. ; Soldatenkov, O. ; Zelner, M. ; Bernacki, T.A. ; Cervin-Lawry, A.
Author_Institution :
Electrotechnical Univ., St-Petersburg
Abstract :
Power handling capability of tunable microwave devices employing ferroelectric BaxSr1-xTiO3 film-based varactors: was experimentally measured and analyzed. A microstrip resonator, excited by either harmonic or two-tone microwave signals of elevated power, was selected as an example of tunable test fixture. The nonlinear distortion of the resonant curve under microwave pulsed power and generation of the third-order intermodulation distortion products in microwave resonator, using ferroelectric varactors were measured. Formulas to estimate power handling capability connected with the microwave electric field dielectric nonlinearity and the ferroelectric film overheating are derived for the tunable microwave devices based on ferroelectric films
Keywords :
barium compounds; ferroelectric devices; ferroelectric materials; microstrip resonators; microwave devices; nonlinear distortion; strontium compounds; varactors; BaxSr1-xTiO3 film; BaSrTiO3; ferroelectric film varactors; microstrip resonator; nonlinear distortion; power handling capability; tunable microwave devices; Distortion measurement; Ferroelectric films; Ferroelectric materials; Microstrip resonators; Microwave devices; Microwave measurements; Power measurement; Pulse measurements; Strontium; Varactors; Ferroelectric devices; ferroelectric films; microwave devices; nonlinear distortion; tunable circuits and devices; varactors;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249462
