Investigation of Shielding Materials, for the Purpose of Shielding Electromagnetic Fields

Abstract

This paper deals with an investigation of the shielding effectiveness of shielding material HSF 54 and windows foil Profilon Antyspy. The motivation for this research was the ongoing need in the field, for improvement of shielding properties against electromagnetic fields. It is focused on the frequency range 0.8-9 GHz. Measurements were performed according to the IEEE 299-2006 Standard. The shielding coating was applied directly, on the MDF board, then measurements of shielding effectiveness and reflection of for all samples were performed in an anechoic chamber. The attenuation of the investigated samples was calculated from the measured values. Subsequently, the presence of spatial charge on the examined samples were measured in the anechoic chamber. It was found that all materials have shielding ability, to prevent the penetration of an electromagnetic field. The presence of spatial charge varies depending on the frequency of the electromagnetic field and its duration. It can be stated that it is necessary to ground each shielding coating, in order to avoid injury or destruction of electronic equipment.