Title :
A thallium-based superconducting cavity for microwave oscillator applications
Author :
Han, S.C. ; Zhou, B.L. ; McCarroll, C.P. ; Hammersley, T.G. ; Apgar, T. ; Arendt, P.N. ; Cooke, D.W.
Author_Institution :
Xsirius Superconductivity, Inc., Arlington, VA, USA
Abstract :
A thallium-based high-temperature superconducting cavity is developed to stabilize an X-band microwave oscillator. The 10-GHz cavity has unloaded Q values of 5.7 × 104 at 77 K and 1.5 × 105 at 20 K. A 10-GHz free running oscillator stabilized by the cavity has single sideband phase noise of -82, -114, and -132 dBc/Hz at 1, 10, and 100 kHz frequency offset from the carrier, respectively
Keywords :
Q-factor; high-temperature superconductors; microwave oscillators; phase noise; superconducting cavity resonators; thallium compounds; 10 GHz; 20 K; 77 K; X-band microwave oscillator; high-temperature superconducting cavity; oscillator stability; single sideband phase noise; unloaded Q values; Coatings; Copper; Dielectric thin films; Gold; High temperature superconductors; Microwave oscillators; Phase noise; Sputtering; Superconducting device noise; Superconducting microwave devices;
Conference_Titel :
Frequency Control Symposium, 1993. 47th., Proceedings of the 1993 IEEE International
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-0905-7
DOI :
10.1109/FREQ.1993.367478
