Analysis of enclosure shielding properties dependence on aperture spacing and excitation parameters

In this paper an influence of aperture spacing and excitation parameters on shielding properties of enclosure is analyzed. Apertures are represented by two groups of two circular or two rectangular apertures placed on adjacent enclosure walls. The following effects are considered: change of distance between apertures either in horizontal or vertical directions and change of plane wave excitation parameters (polarization, elevation and azimuth). In addition, the impact of internal excitation, represented by a wire source inside the enclosure, on the outside environment is analysed for different apertures placement on front enclosure wall.