Scattering from perfect-conducting cylinders of finite length: calculations by means of multiple equivalent dipoles and experiments

Abstract

This paper discusses the equivalent source method for scattering from three dimensional bodies of a perfect conductor. The key of this method is to approximate the scattering fields in terms of the fields generated by the hypothetical dipoles. Example scatterers discussed here are finite cylinders with rotational symmetry, and the calculated results are compared with the results obtained by other numerical methods and also with experiments that we took. Furthermore, two efficient numerical techniques incorporated with the present equivalent source method are proposed, which are useful for a scatterer with large diameter compared to the wavelength and for a slender scatterer, respectively.