Title :
Computation of resonant frequencies and quality factors of open dielectric resonators by a combination of the finite-difference time-domain (FDTD) and Prony´s methods
Author :
Pereda, J.A. ; Vielva, L.A. ; Vegas, A. ; Prieto, A.
Author_Institution :
Dept. de Electron., Cantabria Univ., Santander, Spain
Abstract :
Open dielectric resonators using the FD-TD (finite-difference time-domain) method are analyzed. Resonant frequencies and quality factors are calculated using Prony´s method instead of the classical fast Fourier transform. In this way, reductions of up to two orders of magnitude are achieved in computation time. The results obtained are in good agreement with those reported by other authors.<>
Keywords :
Q-factor; dielectric resonators; finite difference time-domain analysis; Prony´s methods; finite-difference time-domain; open dielectric resonators; quality factors; resonant frequencies; Coupling circuits; Dielectrics; Eigenvalues and eigenfunctions; Fast Fourier transforms; Finite difference methods; Frequency domain analysis; Q factor; Resonance; Resonant frequency; Time domain analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
