Uncertainty estimation of measurement using a vector network analyzer

dddIn this study, we proposed a specification which is able to estimate the uncertainty more easily and quickly and also able to maintain a confidence level When measuring the magnitude and phase of I-port and, 2-port transmission reflection coefficient using a VNA and attached coaxial cable probes. This proposed specification is available when it needs extra special condition of uncertainty estimation and when there is no additional standard equipment like as beadless airline or mismatch standard at the measurement institute. We compared and examined this proposed uncertainty estimation method with recommended EA specification and Agilent specification. As a result, we, think that this proposed specification can he used as a reference for uncertainty estimation and calculation of VNA system, that is, a reference based on the ISO/IEC 17025 requirements.