Title :
Calculation of the dispersive characteristics of open dielectric structures by the finite-difference time-domain method
Author :
Paul, Dominique-Lynda ; Pothecary, Nick M. ; Railton, Chris J.
Author_Institution :
Fac. of Eng., Bristol Univ., UK
fDate :
7/1/1994 12:00:00 AM
Abstract :
An enhanced three-dimensional Finite-Difference Time-Domain (FDTD) technique is applied to the characterization of the fundamental and higher order modes of single and coupled image guide structures. The basic FDTD algorithm is modified to include multidimensional changes of permittivity and an irregular mesh is used for computational efficiency. In this paper FDTD calculations are compared with experimental and theoretical results found in the literature and good agreement is found
Keywords :
dielectric waveguides; dispersion (wave); finite difference time-domain analysis; permittivity; waveguide theory; 3D FDTD technique; FDTD algorithm; computational efficiency; coupled image guide structures; dispersive characteristics; finite-difference time-domain method; fundamental mode; higher order modes; irregular mesh; open dielectric structures; permittivity; Computational efficiency; Dielectric constant; Dispersion; Eigenvalues and eigenfunctions; Finite difference methods; Frequency; Multidimensional systems; Permittivity; Submillimeter wave technology; Time domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
