Title :
A UTD solution for the scattering by a wedge with anisotropic impedance faces: skew incidence case
Author :
Pelosi, Giuseppe ; Manara, Giuliano ; Nepa, Paolo
Author_Institution :
Dept. of Electron. Eng., Florence Univ., Italy
fDate :
4/1/1998 12:00:00 AM
Abstract :
Asymptotic expressions for the fields scattered by an anisotropic impedance wedge at oblique incidence are derived in the context of the uniform geometrical theory of diffraction (UTD). They are obtained by resorting to a perturbative approach, considering the normal incidence case as the imperturbed configuration. We observe that the limits of applicability of this approximate analytical solution extend far beyond those of standard perturbative approaches, allowing us to account for deviations from the normal incidence case of 20° to 30°
Keywords :
electric impedance; electromagnetic wave scattering; geometrical theory of diffraction; UTD solution; anisotropic impedance faces; approximate analytical solution; asymptotic expressions; electromagnetic scattering; imperturbed configuration; normal incidence case; oblique incidence; perturbative approach; skew incidence case; uniform geometrical theory of diffraction; wedge; Anisotropic magnetoresistance; Computer aided software engineering; Electromagnetic analysis; Electromagnetic scattering; Impedance; Optical scattering; Physical theory of diffraction; Radar scattering; Surface waves; Tensile stress;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
