On one approach to electrodynamical
analysis of thin perfectly conducting scatterers
S. P. Skobelev
Joint-Stock Company "Radiophizika", Moscow
Moscow Institute of Physics and Technology
Received
June 6, 2013
Abstract: Analysis of an approximate Fredholm integral equation of the second kind
obtained according to an approach proposed recently in the literature for
solving the problems of electromagnetic wave scattering by weakly curved
perfectly conducting scatterers of small but non-zero thickness is carried out.
The effectiveness of application of the indicated equation based on an equivalent
current on an unclosed surface arranged inside the scatterer is investigated both
analytically and by means of comparison with the method of integral equation of
the first kind and with the method of auxiliary sources applied for solving
two-dimensional problems for a strip. It is shown that like the method of
physical optics, the indicated equation is incapable of accounting for the edge
effects resulting in specific behavior of the current at the edges, excitation
of the edge waves, and appearing of the crosspolar current component. The
results of the work were presented at the 6th All-Russian Conference
"Radar and Communications", November 2012, Moscow, Russia.
Key words: electromagnetic scattering, thin screens, numerical methods, integral
equations.