Author(s)

C. A. Balanis, A. C. Polycarpou, M. N. Vouvakis and C. R. Birtcher

Abstract

Hybridization of a boundary element method with the finite element method in electromagnetics C. A. Balanis, A. C. Polycarpou, M. N. Vouvakis and C. R. Birtcher Department of Electrical Engineering, Telecommunicaions Research Center Arizona State University, USA Abstract A three-dimensional finite element method hybridized with the spectral and spatial domain method of moments is presented for the analysis of ferrite- tuned cavity-backed slot antennas. The cavity, which is partially filled with magnetized ferrite layers, is flush mounted on an infinite ground plane with possible dielectric or magnetic overlay. The antenna operates primarily in the ultra high frequency band. The finite element method is used to solve for the electric field dis- tribution inside the cavity whereas the spectral domain approach is used to solve for the exterior region. An asymptotic extraction of the exponen- tial behavior of the Green's function followed by a spatial evaluation of the resulting in

Keywords