An analytical-numerical technique, for the solution of\ud
the two-dimensional electromagnetic plane-wave scattering by a finite\ud
set of perfectly conducting circular cylinders buried in a dielectric\ud
half-space, is presented. The problem is solved for both the\ud
near- and the far-field regions, for TM and TE polarizations. The\ud
diffracted field is represented in terms of a superposition of cylindrical\ud
waves and use is made of the plane-wave spectrum to take\ud
into account the reflection and transmission of such waves by the\ud
interface. The validity of the approach is confirmed by comparisons\ud
with results available in the literature, with very good agreement.\ud
The multiple interactions between two buried cylinders have\ud
been studied by considering both the induced currents and the scattered\ud
field diagrams. Applications of the method to objects of arbitrary\ud
cross-section simulated by a suitable configuration of circular\ud
cylinders are shown
[1] An analytical-numerical technique for the solution of the two-dimensional electromagnetic plane wave scattering by a finite set of dielectric circular cylinders buried in a dielectric half-space is presented. The problem is solved for both the near-and far-field regions, for transverse magnetic and transverse electric polarizations. The scattered field is represented in terms of a superposition of cylindrical waves, and use is made of the plane wave spectrum to take into account the reflection and transmission of such waves by the interface. The validity of the approach is confirmed by comparisons with results available in the literature, with very good agreement, and by self-consistency tests. Applications of the method to objects of arbitrary cross section simulated by suitable configurations of circular cylinders are shown.
A spectral-domain analysis is presented for the scattering by perfectly conducting cylindrical objects behind a dielectric wall. The solution is developed with an analytical-numerical technique, based on the cylindrical wave approach. Suitable cylindrical functions and their spectral representations are introduced as basis functions for the scattered fields, to deal with their interaction with the planar interfaces bounding the wall. The numerical solution is given in TE and TM polarizations states, and in both near- and far-field zones. The model yields an accurate computation of direct scattering that can be useful for through-wall-imaging applications. A stack of three different dielectric media is considered in the theoretical model. In the numerical results, the upper medium, where the incident field is generated, is assumed to be filled by air, the central layer represents the wall, and the lower medium, which contains the scatterers, is air filled, too. Also general problems of scattering by buried objects can be simulated, being the cylinders buried in a medium of arbitrary permittivity, placed below a dielectric layer.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.