Uncertainty Analysis of Vector Network Analyzer Measurements of four terminal-pair air capacitors

Traditionally, vector network analyzer (VNA) measurements have been used to determine the frequency dependence of four-terminal pair air capacitors. Recently, researchers at the National Institute of Standards and Technology (NIST) have used a four-channel VNA to determine the frequency dependence of air capacitors using the locations of poles and zeros of the capacitance as a function of frequency. This contribution describes the uncertainty analysis for the measurements of the 100 pF and 1 nF. capacitors.