A Far-Field Susceptibility Pattern of a Shielded Object

In this paper a susceptibility pattern of a shielded object is introduced. The pattern describes the amplitude response of the object (E-field response) to the excitation by the uniform plane wave of normalized amplitude and matched polarization within the full solid angle. The pattern visualization consists of three polar diagrams and is similar in concept to the intensity-polarization pattern used in optics and remote sensing. The proposed approach can be very useful in characterization of coupling paths through slots and apertures.