Scattering From an Impedance Object at the Edge of a Perfectly Conducting Wedge

In this study, scattering from impedance bodies positioned at the edge of a perfectly electrically conducting wedge is investigated. In the treatment of the problem, eigenfunction expansion in terms of spherical vector wave functions is employed. A complete dyadic Green's function for the spher...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2014-02, Vol.62 (2), p.852-861
Main Authors: Ghassemiparvin, Behnam, Altintas, Ayhan
Format: Article
Language:English
Subjects:
Antennas
Applied classical electromagnetism
Applied sciences
Conduction
Diffraction, scattering, reflection
Dyadic Green's function
Dyadics
electromagnetic scattering
Electromagnetic wave propagation, radiowave propagation
Electromagnetism
electron and ion optics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Green's function methods
Green's functions
Impedance
Physics
Radiocommunications
Radiowave propagation
Scattering
spherical vector wave functions
Surface impedance
Surface waves
T-matrix
Telecommunications
Telecommunications and information theory
Vectors
Wave functions
wedge scattering
Wedges
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Summary:In this study, scattering from impedance bodies positioned at the edge of a perfectly electrically conducting wedge is investigated. In the treatment of the problem, eigenfunction expansion in terms of spherical vector wave functions is employed. A complete dyadic Green's function for the spherical impedance boss at the edge is developed. It is observed that the scattering is highly enhanced by the edge guided waves. Additionally, using T-matrix method, the solution is extended to the general case of irregularly shaped scatterers. The T-matrix solution is verified by applying it to the case of a spherical scatterer and results are compared with the dyadic Green's function solution.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2013.2290115