Scattering analysis of flat electric dipoles on multilayer chiral structures

Identification of natural targets out of polarimetric SAR data can be made from their scattering matrices, once they are determined. The methodology outlined here permits the spectral domain analysis of a confined chiral layer stacked up between free space and ground, containing flat electric and magnetic elements at any layer interface, and illuminated by an elliptically polarized plane wave at oblique incidence. From the closed-form field expressions so obtained, scattering parameters, including the scattering matrix, of an electric dipole atop the chiral layer are readily determined and analyzed.