Shielding Performance of Nanostructured Transparent Thin Films Loading Apertures of Metallic Enclosures Excited by Dipole Sources

The electromagnetic effects of a nanostructured optically-transparent shield filling a thick aperture in shielding metallic enclosures with internal sources are investigated. The analysis is performed through an efficient Method-of-Moment technique and considers different shielding materials and source/aperture configurations; an effective numerical tool is thus offered for a fast determination of the best thin-film coating configurations. The investigation is also aimed at assessing the field distribution both inside and outside the metallic enclosure and at assessing whether the reduction of the electromagnetic field radiated outside the cavity in the presence of loaded apertures may determine dangerous effects on the interior components.