E-Field, H-Field, and Combined Field Solution for Arbitrarily Shaped Three-Dimensional Dielectric Bodies

ABSTRACT In this work, we present three sets of formulations viz. the electric field integral equation (EFIE) formulation, the magnetic field integral equation (MFIE) formulation, and the combined field integral equation (CFIE) formulation for analyzing the three dimensional homogeneous dielectric bodies Illuminated by an Incident plane wave. In the process of solving these equations, the dielectric object Is approximated by planar triangular patches. On the surface of each triangle, two orthogonal vector functions are defined to approximate the equivalent electric and magnetic currents. These two vector functions serve as basis functions In the solution of the integral equations using the method of moments. The solution procedure thus obtained Is simple, efficient and yields good results. Sample numerical results such as Induced equivalent electric and magnetic currents and far scattered fields are presented for the case of a dielectric sphere and cylinder using all three formulations. The results are co...