Title :
Study of whispering gallery modes in anisotropic single-crystal dielectric resonators
Author :
Krupka, Jerzy ; Cros, Dominique ; Aubourg, Michel ; Guillon, Pierre
Author_Institution :
Istytut Mikroelektron. i Optoelektron. Politechniki, Warszawa, Poland
fDate :
1/1/1994 12:00:00 AM
Abstract :
The Rayleigh-Ritz method and the finite element method nongenerating spurious solutions are employed for analysis of whispering gallery modes (WGMs) in cylindrical single-crystal anisotropic dielectric resonators. These methods allow accurate computation of the resonant frequencies, the Q-factors (depending on the dielectric and on the conductor losses), and the electromagnetic field distributions for all WGMs in the presence of additional elements like metal shields, MIC substrate, or supports. Different families of modes are studied both theoretically and experimentally. The mode coupling phenomenon is investigated. A WGM single-crystal quartz resonator is presented having an unloaded Q-factor greater than 30000 at about 100 GHz, including radiation and dielectric losses
Keywords :
Q-factor; dielectric losses; dielectric resonators; finite element analysis; microwave devices; quartz; 100 GHz; EHF; FEM; MIC substrate; MM-wave type; Q-factors; Rayleigh-Ritz method; SiO2; WGM; anisotropic single-crystal; conductor losses; cylindrical single-crystal anisotropic dielectric resonators; dielectric; dielectric resonators; electromagnetic field distributions; finite element method; metal shields; mode coupling phenomenon; resonant frequencies; single-crystal quartz resonator; supports; whispering gallery modes; Anisotropic magnetoresistance; Conductors; Dielectric losses; Dielectric substrates; Distributed computing; Finite element methods; Magnetic losses; Q factor; Resonant frequency; Whispering gallery modes;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
