EMI Shielding Performance of Metal Fibre Fabrics
topic
EMI shielding effectiveness of metal fibre fabrics is measured by coaxial transmission line method per ASTM D4935 or shielded room method per IEEE 299, quantifying attenuation of electromagnetic radiation from 10 megahertz to 10 gigahertz as decibels of insertion loss; shielding effectiveness depends on fabric sheet resistance, weave geometry, and aperture size of fabric openings that limit shielding at wavelengths comparable to aperture dimensions.
Role
Provides the electromagnetic performance characterisation enabling selection and specification of metal fibre fabric shielding products for electronic device enclosures, medical electromagnetic compatibility garments, and military personnel protection from electromagnetic pulse and directed energy weapon threats requiring quantified shielding effectiveness across defined frequency ranges.