Three-Port Vector-Network-Analyzer Calibrations using the NIST Microwave Uncertainty Framework

Published: January 19, 2019


Jeffrey A. Jargon, Dylan F. Williams, Aric W. Sanders


We developed methods for calibrating three-port vector network analyzers (VNAs) and propagating correlated uncertainties using the NIST Microwave Uncertainty Framework. We describe our calibration procedures, which utilize measured wave-parameters rather than scattering parameters to account for switch-term corrections, and present results for a three-port power splitter. We compare our calibrated measurements with those performed using the firmware of a commercial VNA, and show the results agree to within our confidence intervals at most frequencies.
Proceedings Title: 92nd ARFTG Microwave Measurement Conference
Conference Dates: January 20-23, 2019
Conference Location: Orlando, FL
Pub Type: Conferences

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calibration, coaxial, power splitter, physical models, three-port, uncertainty, vector network analyzer
Created January 19, 2019, Updated March 19, 2019