Title :
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
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;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2005.852788
