High‐frequency scattering by a resistive strip and extensions to conductive and impedance strips

An asymptotic solution is presented for the diffraction by a resistive strip which is useful in the simulation of thin dielectric layers. Up to third-order diffraction terms are derived which include the surface wave field effects in a uniform manner. Extensions to the case of conductive and impedance strips are also given in Appendix C. The derivation of the higher order terms is based on the extended spectral ray method. New first-order diffraction coefficients for the impedance, resistive and conductive half planes are also presented. The last are uniform everywhere, including the surface wave field boundaries.

[1]  J. Volakis,et al.  Simple expressions for a function occurring in diffraction theory , 1985 .

[2]  J. Bowman.  HIGH-FREQUENCY BACKSCATTERING FROM AN ABSORBING INFINITE STRIP WITH ARBITRARY FACE IMPEDANCES , 1967 .

[3]  M. I. Herman,et al.  A uniform asymptotic evaluation of integrals , 1986, Proceedings of the IEEE.

[4]  Giuseppe Pelosi,et al.  A uniform GTD formulation for the diffraction by a wedge with impedance faces , 1985 .

[5]  Thomas B. A. Senior,et al.  Backscattering from resistive strips , 1979 .

[6]  Giuliano Manara,et al.  Scattering by a strip with two face impedances at edge‐on incidence , 1982 .

[7]  P. H. Pathak,et al.  THE DYADIC DIFFRACTION COEFFICIENT FOR A PERFECTLY CONDUCTING WEDGE , 1970 .

[8]  R. Tiberio,et al.  Calculation of the high-frequency diffraction by two nearby edges illuminated at grazing incidence , 1984 .

[9]  G. Franceschetti,et al.  Electromagnetic scattering by a half plane with two face impedances , 1976 .

[10]  High-frequency diffraction by a double wedge , 1985, 1985 Antennas and Propagation Society International Symposium.

[11]  G. D. Maliuzhinets.  Excitation, Reflection and Emission of Surface Waves from a Wedge with Given Face Impedances , 1958 .

[12]  W. Burnside,et al.  A Uniform GTD for the Diffraction by Edges, Vertices and Convex Surfaces , 1981 .

[13]  Thomas B. A. Senior,et al.  Combined resistive and conductive sheets , 1985 .

[14]  R. Tiberio,et al.  A uniform GTD solution for the diffraction by strips illuminated at grazing incidence , 1979 .

[15]  Raj Mittra,et al.  A spectral domain interpretation of high frequency diffraction phenomena , 1977 .

[16]  R. Harrington,et al.  An impedance sheet approximation for thin dielectric shells , 1975 .

[17]  T. Senior.  Scattering by resistive strips , 1979 .

[18]  Scattering by thin dielectric strips , 1985 .

[19]  The Current Induced in a Resistive Half Plane. , 1981 .

[20]  T. Senior.  Diffraction by a semi-infinite metallic sheet , 1952, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[21]  R. Kouyoumjian,et al.  A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface , 1974 .

[22]  I. Anderson,et al.  Plane wave diffraction by a thin dielectric half-plane , 1979 .

[23]  T. Senior.  Half plane edge diffraction , 1975 .