Title :
Microwave properties and modeling of high-T/sub c/ superconducting thin film meander line
Author :
Fathy, A. ; Kalokitis, D. ; Pendrick, V. ; Belohoubek, E. ; Venkatesan, T. ; Nazar, L. ; Barner, J.B. ; Findikoglu, A. ; Inam, A. ; Wu, X.D. ; Xi, X.X. ; McLean, W.L.
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
Abstract :
Meander lines have been utilized for characterizing laser-deposited, thin-film, high-T/sub c/ superconducting material. The dispersion characteristics of the meander line have been modeled and the power dependence of high-T/sub c/ materials as a function of frequency and temperature has been investigated. Measurements showed that magnetic fields as low as 0.1 Oe will affect the superconducting material, decreasing the Q of the meander lines. The Q deterioration is temperature and frequency dependent and the latter is less pronounced at higher frequencies.<>
Keywords :
Q-factor; dispersion (wave); high-frequency effects; high-temperature superconductors; modelling; strip lines; superconducting thin films; Q deterioration; dispersion characteristics; high temperature superconductors; high-T/sub c/ materials; laser deposited material characterisation; magnetic fields; meander line; measurement technique; microwave properties; modeling; power dependence; quality factor; resonators; superconducting thin film; Frequency; Laser modes; Magnetic field measurement; Magnetic materials; Masers; Optical materials; Q measurement; Superconducting materials; Superconducting thin films; Temperature dependence;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99714
