The following is an EM simulation of the backscatter of a golden square object. This is by no means a professional achievement, but rather provides a basic introduction to the HFSS program.
The model is generated using the “Draw -> Box” command. The model is placed a distance away from the origin, where the excitation is placed, shown below. The excitation is of spherical vector form in order to generate a monostatic plot.
The basic structure is a square model (10mm in all three coordinates) with an airbox surrounding it. The airbox is coated with PML radiation boundaries to simulate a perfectly matched layer. This is to emulate a reflection free region. This is necessary to simulate radiating structures in an unbounded, infinite domain. The PML absorbs all electromagnetic waves that interract with the boundary. The following image is the plot of the Monostatic RCS vs the Incident wave elevation angle.
The subsequent figure was generated by using a “bistatic” configuration and is plotted against the elevation angle.