Electromagnetic scattering by inhomogeneous dielectric and magnetic scatterers using VIE with a normalization basis function (NBF) technique

A volume integral equations in terms of equivalent volume electric currents and magnetic currents (JM-VIE) method is presented for electromagnetic analysis of inhomogeneous dielectric objects. Higher order geometrical modeling and curvilinear basis functions (CSWG) defined inside tetrahedrons are applied for high accuracy and reducing the unknowns. The equivalent currents are expanded by using the Full-CSWG functions and the Half-CSWG functions. Non-conformal discretization can be used in the JM-VIE method. Besides, the use of a normalization basis function (NBF) technique in the method reduces the iterative convergence steps. Numerical results are given to show the validity of the method.