Title :
A vertex-based finite-volume time-domain method for analyzing waveguide discontinuities
Author :
Chan, C.H. ; Elson, J.T.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
A vertex based finite-volume time-domain method is proposed for analyzing parallel-plate waveguide discontinuities. An irregular grid is chosen so that it can conform linearly to any discontinuity. In this scheme, the electric field vector is located at the vertices of the grid and the magnetic vector is located at the centroids of the elements formed by the grid. Reflection and transmission coefficients are calculated for the TE case. Excellent agreement is obtained for single- and double-step discontinuities when compared with the mode matching method.<>
Keywords :
time-domain analysis; waveguide components; waveguide theory; TE case; double-step discontinuities; electric field vector; finite-volume time-domain method; irregular grid; magnetic vector; parallel-plate waveguide discontinuities; reflection coefficients; single step type; transmission coefficients; vertex based method; waveguide discontinuities; Electromagnetic waveguides; Equations; Magnetic analysis; Magnetic fields; Mode matching methods; Tellurium; Time domain analysis; Transmission line discontinuities; Vectors; Waveguide discontinuities;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
