Method of Calculating the Electromagnetic Wave Scattering by 2D Inhomogeneities Located on the Surfaces of Large Bodies

The problem of calculating scattering by 2D inhomogeneities that have arbitrary shapes of cross-sections and are situated on the surfaces of large bodies is considered. The modification of the method of the physical diffraction theory with the use of the integral equation method is suggested for the solution of the scattering problem in the real 3D space. The problem of a low accuracy is considered. This problem emerges, when scattering by semiinfinite objects is calculated. Its solution, which involves taking into account the nonuniform part of the current on semiinfinite faces of the inhomogeneity contour, is suggested. The extrapolation formulas for the nonuniform part of the current on the semiinfinite faces are given. The iteration process of improving the accuracy of the calculation of the Ufimtsev scattering functions is considered.