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Oblique scattering from inhomogeneous cylinders using a coupled integral equation formulation with triangular cells

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3 Author(s)
Michielssen, E. ; Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA ; Peterson, A.F. ; Mittra, R.

A novel method of moments formulation for scattering from penetrable two-dimensional cylinders illuminated by an obliquely incident excitation is presented. The permittivity and permeability profiles may have arbitrary piecewise-constant dependence on the transverse variables. Regardless of the polarization of the incident field, the response of the scatterer is a combination of transverse electric (TE) and transverse magnetic (TM) waves. Coupled integral equations for the longitudinal electric and magnetic fields are used in conjunction with a triangular-cell discretization, a piecewise linear representation for Ez and Hz, and point-matching. Numerical results for the internal fields and scattering cross-section are presented to illustrate the accuracy of the approach

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Antennas and Propagation, IEEE Transactions on  (Volume:39 ,  Issue: 4 )