Radar cross-section studies of Spherical Lens Reflectors

S. S. Vinogradov; P. D. Smith; J. S. Kot; N. Nikolic

doi:10.2528/PIER07031206

Radar cross-section studies of Spherical Lens Reflectors

S. S. Vinogradov^*, P. D. Smith, J. S. Kot, N. Nikolic

^*Corresponding author for this work

Research output: Contribution to journal › Article

21 Citations (Scopus)

Abstract

The reflectivity of a Spherical Lens Reflector is investigated. The scattering of an electromagnetic plane wave by a Spherical Lens Reflector is treated as a classical boundary value problem for Maxwell's equations. No restrictions are imposed on the electrical size of reflectors and the angular size of the metallic spherical cap. The competitiveness of the Spherical Lens Reflector against the Luneberg Lens Reflector is demonstrated. It has been found that Spherical Lens Reflectors with relative dielectric constant in the range 3.4 ≤ ε_r ≤ 3.7 possess better spectral performance than 3- or 5-layer Luneberg Lens Reflectors in a wide frequency range.

Original language	English
Pages (from-to)	325-337
Number of pages	13
Journal	Progress in Electromagnetics Research
Volume	72
DOIs	https://doi.org/10.2528/PIER07031206
Publication status	Published - 2007

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author = "Vinogradov, {S. S.} and Smith, {P. D.} and Kot, {J. S.} and N. Nikolic",

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AU - Kot, J. S.

AU - Nikolic, N.

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AB - The reflectivity of a Spherical Lens Reflector is investigated. The scattering of an electromagnetic plane wave by a Spherical Lens Reflector is treated as a classical boundary value problem for Maxwell's equations. No restrictions are imposed on the electrical size of reflectors and the angular size of the metallic spherical cap. The competitiveness of the Spherical Lens Reflector against the Luneberg Lens Reflector is demonstrated. It has been found that Spherical Lens Reflectors with relative dielectric constant in the range 3.4 ≤ εr ≤ 3.7 possess better spectral performance than 3- or 5-layer Luneberg Lens Reflectors in a wide frequency range.

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