Title :
Supporting structures effects on high Q dielectric resonators for oscillator applications
Author :
Liang, Ji-Fuh ; Wang, Chi ; Sun, Qin-Fen ; Zaki, Kawthar A. ; Weinert, R.W.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
Abstract :
The effects of the supporting structures on unloaded Q and resonant frequency of high Q sapphire dielectric resonators (DR) are investigated. Ring and post support structures are analyzed for TE01, TE02 and whispering gallery modes, which are usually used in high Q sapphire DR loaded cavities for ultra low noise oscillator applications. Field distribution plots show how the fields are disturbed by the supporting structures. The effects of the supports on the unloaded Q of the cavities and the spurious spectrum are presented. The results provide valuable informations for ultrahigh Q cavity design
Keywords :
cavity resonators; dielectric resonator oscillators; dielectric-loaded waveguides; sapphire; Al2O3; TE01; TE02; field distribution plots; high Q dielectric resonators; oscillator applications; post support structures; ring structures; spurious spectrum; structures effects; ultrahigh Q cavity design; whispering gallery modes; Dielectric constant; Dielectric materials; Educational institutions; Optical ring resonators; Oscillators; Resonance; Resonant frequency; Sun; Superconducting device noise; Whispering gallery modes;
Conference_Titel :
Frequency Control Symposium, 1994. 48th., Proceedings of the 1994 IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-1945-1
DOI :
10.1109/FREQ.1994.398294
