Analysis of gold-plated polyester film for SE measurement

Abstract

The flanged coaxial tester is designed to measure shielding effectiveness (SE) of planar electromagnetic shielding materials in far field. Based on the previous studies on tester, it developed a standard reference specimen to validate the entire testing system is working well according to ASTM D4935-2018. Gold-plated polyester film is developed by sputtering gold on polymers using high-frequency sputtering equipment. It measured the surface resistivity, then analyzed the relationship between SE and surface resistivity by theoretical calculation and measurement. In the end, it determined the measurement uncertainty, which verifies good system repeatability.