Evaluation of Uncertainty Measurement Calculation for Vector Network Analyzer From 300 kHz to 8.5 GHz

Abstract

Increasing the telecommunications products that allow Vector Network Analyzer is becoming more common tools to measure the S-Parameter. It will be an absolute number from the S-Parameter measurements produced in real and imaginary, other words it is also known as the product of the calculation. The calculation findings do not include the systematic and random errors. It's the reaction of the engineer to mitigate the likelihood of random and systemic errors. One of the common random error solutions is through the statistical analysis in the Vector Network Analyzer either repeated measurement or turn on high averaging measurement. The more data assessed, the greater the engineer's confidence in evaluating random errors did not contribute significant errors. Systemic Error is consistent and reproducible when the measurement is made. One way of harmonizing these errors is to evaluate uncertainty measurements in the calculation for Vector Network Analyzer to perform measurements of reflection and transmission. Transmission measurements produce the three systematic errors that were directivity, source match and frequency response reflection tracking. This paper will concentrate from 300 kHz to 8.5 GHz directivity experimental to determine the accuracy of the Vector Network Analyzer. The experimental results will check balance with the Vector Network Analyzer specification. It is a validation process to ensure the Vector Network Analyzer meets the specification in order to perform an accurate measurement. The estimation of measurement uncertainty also refers to the Metrology 100 series Joint Committee for Guide to the Expression of Uncertainty in Measurement. The uncertainty expended should apply to Student Table's confident level of 95%. It creates awareness to demonstrate the importance of measurement quality associated with the uncertainty, particularly for an ISO17025:2017 certified competence testing and calibration laboratory. Without the uncertainty associate to the measurement, it is not complying to the standard ISO17025:2017.

Evaluation of Type A Uncertainty in a Network Analyzer From 300 kHz to 8.5 GHz

“…The reading of transmission S21 and S12 were the magnitude of absolute measurement from PXIe-5632 VNA and associate with Type A uncertainty. Each of the individual Type A uncertainty will be computed with Type B uncertainty to calculate the total expended uncertainty expended uncertainty which the total expended uncertainty should reported in 2 decimal points [11]. Repeated measurement concept is involved multiple measurement of each frequency.…”

“…This paper is an extension of the work originally presented in the 2016 7 th International Conference on Mechanical, Industrial, and Manufacturing Technologies [9] , Journal of Engineering Science and Technology Vol. 14, No3 (2019) 1587-1600 [10] and Journal Advances in Science, Technology and Engineering System Journal Vol 5, Issue 3 [11].…”