Analysis of dielectric resonator cavities using the finite integration technique

Author

Lebaric, Jovan E. ; Kajfez, Darko

Author_Institution

Rose-Hulman Inst. of Technol., Terre Haute, IN, USA

Volume

37

Issue

11

fYear

1989

fDate

11/1/1989 12:00:00 AM

Firstpage

1740

Lastpage

1748

Abstract

Resonant modes in shielded dielectric resonators are studied by a numerical technique which yields the resonant frequencies, modal field distribution, and Q-factors of various resonant modes, including the hybrid modes. The technique uses field discretization by virtue of dual electric and magnetic grids and allows for a direct numerical solution of the integral form of Maxwell´s equation for specified boundary conditions. The details of the matrix formulation are explained on an example of the cavity subdivided into a grid consisting of 3×3 electric cells. A modal field plot exhibiting a spiraling behavior has been observed

Keywords

cavity resonators; dielectric resonators; integration; matrix algebra; Maxwell´s equation; Q-factors; dielectric resonator cavities; dual electric/magnetic grids; field discretization; finite integration technique; hybrid modes; integral form; matrix formulation; modal field distribution; modal field plot; numerical technique; resonant frequencies; resonant modes; shielded dielectric resonators; specified boundary conditions; spiraling behavior; Dielectrics; Eigenvalues and eigenfunctions; Finite element methods; Integral equations; Magnetic fields; Magnetic resonance; Magnetosphere; Maxwell equations; Permittivity; Resonant frequency;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.41039

Filename

41039