Measuring Shielding and Absorbent Material Effectiveness with Vector Network Analysis

Electromagnetic shielding and absorbent materials are critical for ensuring secure communication, reducing interference, and achieving compliance with EMC standards in modern RF systems. As frequencies extend into millimeter-wave and beyond, accurately characterizing these materials becomes increasingly challenging. This presentation demonstrates how Vector Network Analysis (VNA) provides a precise and reliable method for evaluating shielding effectiveness and absorption properties through S-parameter measurements. We will explore practical test setups, including fixture design and calibration techniques, to minimize uncertainty and achieve accurate results.

Alex Goloschokin – Copper Mountain Technologies on behalf of Acal BFi