Electromagnetic shielding (S-parameters) and electromagnetic parameters measurement system for the frequency domain up to the 50 GHz range

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The consumer electronic and telecommunication sectors continue to grow as the demand and utilization of mobile and smart devices continue to expand. At the same time, there is an increasing urge and demand on electromagnetic interference (EMI) shielding of radio frequency radiation for our society. EMI shielding is required to protect us, our environment, and our workspace from radiation coming from telecommunication equipment and computers. Electrically-conductive polymer composites are one of the most promising materials for this application due to their light weight, resistance to corrosion, flexibility, and processing advantages. To fabricate electrically-conductive polymer composites with tailored properties, precise measurement of EMI shielding effectiveness and electromagnetic parameters (permittivity, permeability, and loss tangent) of materials over ultra-high frequency ranges (radio frequencies) is crucial and highly challenging.