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The National Institute of Standards and Technology has initiated a passive intermodulation measurement comparison for the US wireless industry. The goal is to determine the agreement in the measurements of third-order intermodulation products of passive devices made by participating companies for currently deployed communication bands. We provide the details of this comparison along with preliminary results. In addition, we present a model describing third-order intermodulation distortion within a cable assembly and show how the cable and load affect passive intermodulation measurements.
Date of Conference: 3-4 Dec. 1998