From cloaking of conducting cylinder to RCS reduction/enhancement

In this paper, the bistatic Radar Cross Section (RCS), extensively used by the antenna/ radar engineers, will be computed via the standard separation of variables method to assess the cloaks proposed by Valagiannopoulos and Alitalo in the above mentioned references. It will be shown that their improved cloaks still have very strong backscattering RCS. However, with the lossy dielectric/magnetic cladding material, the backscattering RCS is reduced significantly. In addition, it will be presented that the RCS reduction/enhancement of a conducting cylinder can be achieved by adding a single layer of isotropic lossless/lossy dielectric around the conducting cylinder similar to the RCS results published in (T.K. Wu and L. Tsai, IEEE Trans., AP-25, 516-524, 1977).