RCS Analysis of Trihedral Corner Reflectors by Using Physical Optics Method

Abstract

The backscattering radar cross section (RCS) of square trihedral corner reflector is derived as a function of incident direction, and it is studied about the RCS Characteristics including elevation angle θ, as the parameters of frequency, incident polarization and the reflector's length.
Comparing theoretical results with experiments, good agreement is seen for the both horizontal and slant polarization cases.
In this paper, the method of physical optics which assumes the induced current on the surface of scatterer 2 times of the incident magnetic field is applied to calculate the 3-dimensional analysis of RCS.