| The solution of the electromagnetic scattering of obliquely-incident plane waves from homogeneous, nonlinear anisotropic cylindrical structures is obtained. The medium of the scatterer is characterized by Volterra-type integrals for the electric and magnetic flux density vectors D and B, respectively. For the particular case of nondispersive dielectric medium, the displacement vector D reduces to a Taylor series expansion near zero.;The effect of nonlinearities on the field properties both inside and outside the scatterer, together with the effect on the radar cross section are investigated. A numerically efficient computer code is developed and tested on a variety of scattering media for solid and hollow cylindrical bodies.;It is concluded that the two methods give identical results if the nonlinearity is small or if the characteristic dimension of the scatterer is small compared to the wavelength. The other important observation is that the results obtained using the iteration method diverge from the linear results, with distortion, faster than those obtained by the perturbation method.;The nonlinear problem is solved using two methods: the iteration method and the perturbation method, then the results are compared. |
