Title :
Fast finite-difference time-domain analysis of resonators using digital filtering and spectrum estimation techniques
Author :
Bi, Zhiqiang ; Shen, Ying ; Wu, Keli ; Litva, John
Author_Institution :
Commun. Res. Lab., McMaster Univ., Hamilton, Ont., Canada
fDate :
8/1/1992 12:00:00 AM
Abstract :
The use of digital filtering and spectrum estimation techniques for improving the efficiency of the FD-TD algorithm in solving eigenvalue problems is discussed. The great improvement of the efficiency of the method is demonstrated by means of both numerical and measurement results. In addition, several improvements to the present FD-TD method for eigenvalue analysis are presented. These include the analysis of open dielectric resonators and the extraction of the resonant frequencies from the FD-TD results. The result for the open dielectric resonator analysis is validated using measured data
Keywords :
dielectric resonators; difference equations; eigenvalues and eigenfunctions; filtering and prediction theory; spectral analysis; time-domain analysis; FD-TD algorithm; digital filtering; efficiency; eigenvalue problems; finite-difference time-domain analysis; open dielectric resonators; resonant frequencies; resonators; spectrum estimation techniques; Data mining; Dielectric measurements; Digital filters; Eigenvalues and eigenfunctions; Filtering algorithms; Finite difference methods; Resonant frequency; Resonator filters; Spectral analysis; Time domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
