The UAPO Solution for the Plane Wave Diffraction by a Resistive Half-Plane in the Case of Skew Incidence

The extension of the Uniform Asymptotic Physical Optics approach to the three-dimensional diffraction problem involving a resistive half-plane is presented in this work. The resistive boundary conditions in correspondence of the screen are used to determine the reflection and transmission coefficients for both the polarizations and then the Geometrical Optics field around the structure. This enables the formulation of the electric and magnetic equivalent surface currents to be considered as radiating sources in the approach for the evaluation of the diffracted field. The ability of this contribution to compensate the jumps of the Geometrical Optics field is proved by means of numerical tests.