On applying the perturbation theory for the evaluation of near zone scattering properties of a perturbed PEMC cylinder

Abstract In this paper, near zone scattering properties of a perturbed perfect electromagnetic conductor (PEMC) cylinder are observed using the perturbation theory (PT). The analytical solution of the scattered field is obtained for both the transverse electric (TE) and transverse magnetic (TM) polarizations of the incident field. The perturbed cross section is generated considering the limits imposed by the PT. The effect of perturbations on the co and cross polarized components of the scattered field from a perturbed PEMC cylinder is observed and compared with the reference scattered field from the circular PEMC cylinder. In particular, the distinctions due to perturbations are observed in the forward and backward scattering. The forward scattering deviates more than the backward scattering. Also, the effect of perturbations for the TE polarization is more evident. The variations in the co and cross polarized scattering are also noted by changing the value of the admittance of the PEMC cylinder.