The radar cross section of dielectric disks
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In this article, a solution for the backscatter (monostatic) radar cross section of dielectric disks of arbitrary shape, thickness, and dielectrics constant was presented by employing a Kirchhoff-type approximation.Abstract:
A solution is presented for the backscatter (monostatic) radar cross section of dielectric disks of arbitrary shape, thickness, and dielectric constant. The result is obtained by employing a Kirchhoff-type approximation to obtain the fields inside the disk. The internal fields induce polarization and conduction currents from which the scattered fields and the radar cross section can be computed. The solution for the radar cross section obtained in this manner will be shown to agree with known results in the special cases of normal incidence, thin disks, and perfect conductivity. It will also be shown that the solution can be written as a product of the reflection coefficient of an identically oriented slab times the physical optics solution for the backscatter cross section of a perfectly conducting disk of the same shape. This result follows directly from the Kirchhoff-type approximation without additional assumptions.read more
Citations
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Journal ArticleDOI
Radar evidence of subglacial liquid water on Mars
Roberto Orosei,Sebastian Lauro,Elena Pettinelli,Andrea Cicchetti,M. Coradini,Barbara Cosciotti,F. Di Paolo,E. Flamini,Elisabetta Mattei,Maurizio Pajola,Francesco Soldovieri,M. Cartacci,F. Cassenti,Alessandro Frigeri,S. Giuppi,R. Martufi,A. Masdea,Giuseppe Mitri,C. Nenna,Raffaella Noschese,Marco Restano,Roberto Seu +21 more
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Scattering from thin dielectric disks
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References
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Electromagnetic backscattering from a sparse distribution of lossy dielectric scatterers
TL;DR: In this paper, the authors used the Foldy approximation to find an equation for the mean field and derived an effective permittivity for the scattering medium from this equation, from which the correlation of the scattered field was found by employing the distorted Born approximation, i.e., particles embedded in the effective medium are assumed to be single scatterers.
Journal ArticleDOI
Light scattering by dielectric needles and disks
R. Schiffer,K. O. Thielheim +1 more
TL;DR: In this article, the light scattering properties of very thin or flat dielectric particles are approximately calculated by means of a method which combines Rayleigh-Gans and Rayleigh scattering.
Journal ArticleDOI
Strenge Theorie der Beugung ebener elektromagnetischer Wellen an der vollkommen leitenden Kreisscheibe und an der kreisförmigen Öffnung im vollkommen leitenden ebenen Schirm
J. Meixner,W. Andrejewski +1 more
Journal ArticleDOI
Scattering and absorption of electromagnetic radiation by thin dielectric disks.
Herschel Weil,C-M. Chu +1 more
TL;DR: The scattering and absorption of incident polarized radiation by thin flat circular disks composed of homogeneous isotropic material of complex refractive index is investigated by solving an integral equation for the induced currents.
Journal ArticleDOI
Scattering by circular metallic disks
TL;DR: In this paper, the eigenfunction solution for the far-field scattering by a thin, circular metallic disk is summarized, and sample amplitude, phase, and cross section results are presented.