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Electromagnetic scattering from anisotropic materials, part II: Computer code and numerical results in two dimensions

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2 Author(s)
Graglia, R.D. ; Polytechnico di Torino, Torino, Italy ; Uslenghi, P.L.E.

The two-dimensional problem of oblique scattering by penetrable cylinders of arbitrary cross section made of materials which are linear, lossy, anisotropic and possibly inhomogeneous is considered. The materials are characterized by arbitrary tensor susceptibilities \bar{x}_{ec} and \bar{x}_{m} . The frequency-domain volume integrodifferential equations satisfied by the electric and magnetic fields and obtained in a previous paper (Part 1) are analyzed numerically. Optimal ordering of the unknowns and transverse electric-transverse magnetic (TE-TM) decomposition in the matrix formulation of the problem are discussed. The cross section of the scatterer is broken down into a triangular mesh. The field components at the vertices of the triangles are the unknowns; within each triangle, each field component is a linear combination of its values at the vertices. Computed field distributions inside the scatterer are found to be in excellent agreement with results obtained by other methods.

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Antennas and Propagation, IEEE Transactions on  (Volume:35 ,  Issue: 2 )