MEASURING OF DEPENDENCE OF SHIELDING EFFECTIVENESS OF WET MATERIALS ON THE FREQUENCY OF ELECTROMAGNETIC FIELD IN THE HIGH FREQUENCY RANGE

Abstract

This paper deals with measuring of shielding effectiveness of electromagnetic field. The measurements were focused on shielding effectiveness while gradually drying out building materials in the range of high frequencies from 1 GHz to 13 GHz. The measured object was fiber cement board facade Eterplan and exterior facade board Natura Pro. Thickness of the boards were 8 mm. The measurement should prove that the shielding effectiveness of electromagnetic field of the wet materials is higher than the dry materials.