Contour Path FDTD Method for Analysis of Pyramidal Horns with Composite InnerEpsilon-Plane Walls

摘要

The contour path finite-difference time-domain (FDTD) method is used for modelingpyramidal horn antennas with or without composite E-plane inner walls. To model the pyramidal horn surface, a locally distorted grid is used. Modified equations are obtained based on the locally distorted grid and the assumptions of the contour path method. The developed algorithm is validated by comparing computed antenna gain patterns, with and without the presence of composite material, with available measurements. (MM).