Edge excited surface waves on impedance surfaces

Author

Manara, G. ; Mugnaini, S. ; Nepa, P.

Author_Institution

Dept. of Inf. Eng., Pisa Univ., Italy

Volume

3B

fYear

2005

fDate

3-8 July 2005

Firstpage

143

Abstract

In this paper, the surface waves excited at the edge of a wedge characterized by anisotropic impedance faces are analyzed, when the edge is illuminated by an arbitrarily polarized plane wave at oblique incidence. In the wedge scattering problem, these guided wave modes are associated with pole singularities exhibited by the angular spectra for the total field in the region surrounding the wedge. The location of the above pole singularities determines the wave vector and the existence region of the corresponding SW, while their complex amplitude is provided by the pole residue. A general equation for the SW wave vectors is derived that is valid for any surface impedance tensor and independent of the geometrical wedge configuration.

Keywords

anisotropic media; electromagnetic wave polarisation; electromagnetic wave scattering; poles and zeros; surface impedance; tensors; vectors; waveguide theory; SW wave vectors; angular spectra; anisotropic impedance faces; arbitrarily polarized plane wave; edge excited surface waves; guided wave modes; impedance surfaces; oblique incidence; pole residue; pole singularities; surface impedance tensor; total field; wave vector; wedge scattering; Anisotropic magnetoresistance; Diffraction; Geometry; Information analysis; Optical scattering; Optical surface waves; Polarization; Surface impedance; Surface waves; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552455

Filename

1552455