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2017-10-31

Gaussian Beam Electromagnetic Scattering from PEC Polygonal Cross-Section Cylinders

By Mario Lucido, Fulvio Schettino, Marco Donald Migliore, Daniele Pinchera, and Gaetano Panariello
Progress In Electromagnetics Research C, Vol. 79, 101-113, 2017
doi:10.2528/PIERC17070707

Abstract

In scattering experiments, incident fields are usually produced by aperture antennas or lasers. Nevertheless, incident plane waves are usually preferred to simplify theoretical analysis. The aim of this paper is the analysis of the electromagnetic scattering from a perfectly electrically conducting polygonal cross-section cylinder when a Gaussian beam impinges upon it. Assuming TM/TE incidence with respect to the cylinder axis, the problem is formulated as electric/magnetic field integral equation in the spectral domain, respectively. The Method of analytical preconditioning is applied in order to guarantee the convergence of the discretization scheme. Moreover, fast convergence is achieved in terms of both computation time and storage requirements by choosing expansion functions reconstructing the behaviour of the fields on the wedges with a closed-form spectral domain counterpart and by means of an analytical asymptotic acceleration technique.

Citation


Mario Lucido, Fulvio Schettino, Marco Donald Migliore, Daniele Pinchera, and Gaetano Panariello, "Gaussian Beam Electromagnetic Scattering from PEC Polygonal Cross-Section Cylinders," Progress In Electromagnetics Research C, Vol. 79, 101-113, 2017.
doi:10.2528/PIERC17070707
http://www.jpier.org/PIERC/pier.php?paper=17070707

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