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Abstract
An effective pre-conditioner for the method of moments (MoM) solution to the coupled volume-surface integral equation is presented to calculate electromagnetic scattering from conducting and dielectric targets. In this MoM solution to the integral equations, the target is discretized using triangular patches for conducting surfaces and tetrahedral cells for dielectric volume. Based on the characteristics of impedance matrix, an accurate method is used to improve the convergence speed when the iterative solver is employed. In comparison with other pre-conditioners, some numerical examples are also presented with high efficiency.
