Title :
Observation of "whispering gallery" modes in dielectric rod resonators
Author :
Langham, C.D. ; Abbas, F. ; Gallop, J.C.
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
We show some preliminary observations of "whispering gallery" modes in a sapphire rod 100 mm long and 20 mm in diameter. Traditionally dielectric ring resonators or short squat resonators (D/L/spl ges/1) have been used for the observation of such modes. Results of an oscillator employing these whispering gallery modes will also be given in this paper.
Keywords :
Q-factor; dielectric resonator oscillators; frequency stability; microwave measurement; mode matching; sapphire; 100 mm; 20 mm; Al/sub 2/O/sub 3/; Allan variance; EM standing wave confinement; Q-factors; dielectric rod resonators; frequency stability; low order modes; reduced microwave coupling; sapphire rod; single crystal rods; whispering gallery modes; Dielectrics; Electromagnetic heating; Frequency; Helium; Oscillators; Q factor; Resistance heating; Superconducting microwave devices; Thin film sensors; Whispering gallery modes;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.700038
