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A computational scheme for the analysis of electromagnetic scattering from electrically three-dimensional (3D) perfectly electric conduction (PEC) objects buried in a lossy stratified medium is presented. The method of moments combined with the mixed-potential electric field integral equation (MoM-MPIE) is used. A three level modified discrete complex images methods (DCIM) is introduced to obtain...
A numerically efficient technique for the evaluation of transmission coefficients of the finite planar Frequency - Selective Surfaces (FSSs) embedded in stratified medium is presented in this letter. The numerical analysis involves the solution of a mixed potential integral equation (MPIE) with the layered media Green's function. The layered media Green's function is derived by using discrete complex...
MLFMM augmented with a Green's function interpolation method is proposed to efficiently solve the electromagnetic scattering problems. One well-known shortcoming of the traditional mid-frequency MLFMM method is that the finest box size must be at least 0.25 wavelength to ensure the accuracy. However, there exists a myriad of real targets having fine structure, and it usually produces a large number...
In this study, the finite-element boundary integral (FE-BI) method is applied to analyse the electromagnetic scattering from arbitrary objects in the half-space environment. Combined with the real image method to approximate the half-space Green's function, the half-space FE-BI can be extended for electrically large problems by the fast multipole method. An efficient preconditioner is constructed...
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