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Influence of tmso calibration standards uncertainties on vna s -parameter measurements
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2003
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EngineeringMeasurementMeasurement Standards (Educational Assessment)EducationUncertainty ParameterSignal IntegrityUncertainty BudgetUncertainty QuantificationCalibration12-Term Tmso CalibrationSystems EngineeringSensitivity CoefficientsInstrumentationMeasurement Standards (Electrical Engineering)Precision MeasurementComputer EngineeringSignal ProcessingSensor CalibrationMultivariate CalibrationMeasurement System
For the widespread, 12-term TMSO calibration of four-sampler vector network analyzers (VNAs), the sensitivity coefficients of the S-parameters of two ports are determined as functions of the deviations of the reflection coefficients of the one-port calibration standards and of an imperfect through connection. The expressions obtained, which have been experimentally verified, are suitable for the establishment of the uncertainty budget.