AN EXPERIMENTAL AND THEORETICAL INVESTIGATION OF SCATTERING BY FINITE PERFECTLY CONDUCTING CYLINDERS WITH VARYING CROSS-SECTION

Abstract

In this paper we consider the problem of scattering from a class of three dimensional (3-D) targets which are finite cylinders but whose cross-section varies along the axis of the structure. We devise a technique wherein the solution to this 3-D problem is reduced to a sequency of two dimensional (2-D) problems. Solutions of 2-D problems are easier to obtain than the solutions of 3-D problems and further a variety of well established 2-D methods are available. This procedure results in a dramatic reduction in computational complexity and also makes the technique suitable for implementation on computers with highly parallel architectures. A number of targets with ogival and elliptical cross-sections were built and their back-scattered RCS was measured at 3, 6 and 10 GHz. Good agreement between computed and experimental results is obtained validating the technique described here. [Vol. 9, No. 2 (1994), pp. 154-161]