Title :
Resonant modes in shielded cylindrical ferrite and single-crystal dielectric resonators
Author_Institution :
Inst. of Microelectron. & Optoelectron., Warsaw Univ. of Technol., Poland
fDate :
4/1/1989 12:00:00 AM
Abstract :
The Galerkin-Rayleigh-Ritz method is applied for computing the first few lowest resonant frequencies of cylindrical anisotropic resonators in a cylindrical cavity. The resonators are allowed to have gyromagnetic and uniaxial dielectric anisotropy with respect to the z-axis of the cylinder. Results of computations of the resonant frequencies are compared to exact solutions for many simple resonant structures and to results of experiments for more complicated structures, with good agreement. A new method of measuring permeability tensor components is presented. The method utilizes two parallel-plate cylindrical resonators operating in the HE+-/111 and H011 modes. A method of measuring the permittivity tensor components of single crystals using one parallel-plate cylindrical resonator operating in two different modes is proposed
Keywords :
dielectric resonators; ferrite devices; permeability; permittivity; shielding; Galerkin-Rayleigh-Ritz method; H011 modes; HE+-/111 mode; cylindrical anisotropic resonators; cylindrical cavity; dielectric resonators; gyromagnetic anisotropy; parallel-plate; permeability measurement; permeability tensor components; permittivity measurement; permittivity tensor components; resonant frequencies; shielded cylindrical ferrite; single-crystal; uniaxial dielectric anisotropy; Anisotropic magnetoresistance; Dielectric measurements; Ferrites; Gyromagnetism; Moment methods; Permeability measurement; Permittivity measurement; Resonance; Resonant frequency; Tensile stress;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
