ELECTROMAGNETIC SCATTERING FROM THE SPHERICAL LUNEBERG LENS

This study presents a newly developed technique for obtaining the theo retical scattering characteristics of the Luneberg lens. Generally, su ch calculations axe approximated by using multi-layered, concentric sp here models. Here the Fredholm Integral Method (FIM) has been applied to the scattering problem, involving a single inhomogeneous sphere, wh ere the refractive index of the sphere varies with radial distance fro m its centre. Comparisons are presented between scattering from the Lu neberg lens, modeled by 3-, 5- and 10-layered spheres and by the FIM t echnique, for k0a values in the range 1.0 to 5.0. A comparison is also given, at k0a = 5.0, with a differential equation solution.