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A new hybrid adaptive cross approximation-characteristic basis function method (ACA-CBFM) is proposed to efficiently solve the electromagnetic scattering problems. In the conventional ACA-CBFM, the ACA is only applied to speed up the construction of the reduced matrix that is directly solved and stored. However, with the increase of the size of the targets under analysis, the reduced matrix will become...
In this article, the equivalent dipole moment (EDM) method is extended and applied to analyze the electromagnetic scattering from arbitrarily shaped three-dimensional (3D) PEC targets coated by magnetic anisotropic media. Besides the advantage of reducing the computation time, the proposed EDM method makes it unnecessary to treat the boundary condition on the surface. The numerical results indicate...
In this article, we present a novel approach based on PMCHW integral equation formulation in conjunction with the adaptively modified characteristic basis function method (AMCBFM) to solve the scattering from homogenous dielectric bodies. In the new method, equivalent electric and magnetic currents on the surface of object are needed and expanded using RWG basis functions. AMCFBM is subsequently used...
This paper presents an efficient method for the generation of MoM matrix based on the equivalent dipole-moment method for electromagnetic scattering by dielectric bodies. Based on the RWG basis function, the surface of the dielectric object is discretized into several triangular patches. Each RWG common edge element containing two triangular patches is regarded as a pair. The impedance matrix elements...
This paper presents a volume-surface integral equation approach for the computation of electromagnetic scattering by the microstrip antenna on an anisotropic substrate. The volume electric field integral equation is applied to the material region and the surface electric field integral equation is applied on the conducting surface. The method of moments (MoM) is used to convert the integral equation...
In this paper, a hybrid method of curve RWG basis function (CRWG) and adaptively modified characteristic basis function method (AMCBFM) is proposed for the method-of-moments (MoM) solution of integral equations for three-dimensional (3-D) electromagnetic (EM) problems. Numerical results show that the CRWG-AMCBFM solves the real problems accurately and can save more RAM storage and CPU time than conventional...
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