Wei Tian Sheng

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Analysis of electromagnetic (EM) scattering by composite objects with inhomogeneous or anisotropic media requires an efficient solution of volume integral equations (VIEs) or volume-surface integral equations (VSIEs) in the integral equation approach. The traditional method of moments (MoM) with the Rao-Wilton-Glisson (RWG) basis function and the(More)
In the method of moments (MoM) for solving volume integral equations (VIEs), one usually approximates the unknown flux density with the Schaubert-Wilton-Glisson (SWG) basis function and has to assume a homogeneous material in each tetrahedral element. Also, the volume charge density is equivalently represented with a lower-order basis function, and there(More)
Reconstruction of unknown objects by microwave illumination requires efficient inversion for measured electromagnetic scattering data. In the integral equation approach for reconstructing dielectric objects based on the Born iterative method or its variations, the volume integral equations are involved because the imaging domain is fully inhomogeneous. When(More)
Electromagnetic analysis for interconnect and packaging structures usually relies on the solutions of surface integral equations (SIEs) in integral equation solvers. Though the SIEs are necessary for the conductors in the structures, one has to assume a homogeneity of material for each layer of a substrate if SIEs are used for the substrate. When the(More)
Solving electromagnetic (EM) problems by integral equation methods relies on the accurate evaluation of singular integrals related to the Green's function. In the method of moments (MoM) with the Rao-Wilton-Glisson (RWG) basis function for solving surface integral equations (SIEs), the gradient operator on the scalar Green's function can be moved onto the(More)
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