Title :
Mode Selection for a Whispering Gallery Mode Resonator
Author :
Duchiron, G. ; Cros, D. ; Guillon, P. ; Chaubet, M. ; Zanchi, C.
Author_Institution :
I.R.C.O.M., Faculté des Sciences, UMR CNRS 6615, 123 Avenue A Thomas, 87060 LIMOGES Cedex
Abstract :
An original mode selection technique for whispering gallery mode sapphire resonator (WGMR) is presented. A set of metallic screws, inserted in the cavity, allows to improve the frequency isolation of the WGEm,0,0 modes, with little Q-factor degradation. The design has been performed using a 3-D Finite Element Method (FEM) software to check the validity of the technique, and experimental results are in good agreement with theoretical ones.
Keywords :
Degradation; Dielectric losses; Fasteners; Finite element methods; Frequency; Magnetic resonance; Probes; Q factor; Temperature; Whispering gallery modes;
Conference_Titel :
Microwave Conference, 1999. 29th European
Conference_Location :
Munich, Germany
DOI :
10.1109/EUMA.1999.338523
