Title :
Dimensional analysis of two-layer spherical dielectric resonator
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon
fDate :
4/1/2000 12:00:00 AM
Abstract :
Dimensional analysis is used to study the complex resonance of a two-layer spherical dielectric resonator (DR). In the analysis, the various dimensionless products, or Pi terms, of the system are found. From the Pi theorem, the Pi terms are related to one another by a function, which is found using the curve-fitting technique in this paper. For demonstration, the fundamental TE mode, the TE111 mode, of a spherical DR is investigated. Simple formulas for the resonant frequency and Q-factor are obtained. The results are compared with the exact solutions and excellent agreement is obtained
Keywords :
Q-factor; curve fitting; dielectric resonators; microwave devices; Pi theorem; Q-factor; TE111 mode; complex resonance; curve-fitting technique; dimensional analysis; dimensionless products; fundamental TE mode; resonant frequency; spherical dielectric resonator; two-layer spherical; Curve fitting; Dielectric losses; Helium; Microwave filters; Microwave oscillators; Nonhomogeneous media; Resonance; Resonant frequency; Resonator filters; Tellurium;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
