Fast numerical analysis of dielectric resonators with perturbed rotational symmetry

Author

Wiktor, Michal ; Mrozowski, Michal

Author_Institution

Dept. of Electron., Gdansk Univ. of Technol., Poland

Volume

15

Issue

8

fYear

2005

Firstpage

516

Lastpage

518

Abstract

A fast finite difference frequency domain (FDFD) formulation for obtaining resonant frequencies of structures with perturbed rotational symmetry is described. The formulation combines a three-dimensional (3-D) eigenfunction function expansion algorithm with 3-D FDFD in the cylindrical coordinate system. Numerical tests have showed that the technique gives high accuracy results and significant CPU time reduction.

Keywords

dielectric resonators; eigenvalues and eigenfunctions; finite difference methods; frequency-domain analysis; 3D eigenfunction; CPU time reduction; cylindrical coordinate system; dielectric resonator; dual mode resonators; finite difference frequency domain formulation; function expansion algorithm; perturbed rotational symmetry; resonant frequency; Dielectrics; Eigenvalues and eigenfunctions; Finite difference methods; Frequency domain analysis; Maxwell equations; Numerical analysis; Polarization; Sparse matrices; Surface fitting; Time domain analysis; Dual mode resonators; finite differences; function expansion;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2005.852788

Filename

1471729