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Noise figure is a key performance parameter in many RF systems. The Y-factor method is the most common method to calculate the noise factor (F) of the DUT. A complete Y-factor noise figure measurement requires 2 steps (a) Calibration and (b) Measurement of the DUT. The Y-factor measurement involves the use of a noise source that has a pre-calibrated Excess Noise Ratio (ENR). Unfortunately, there is always a trade-off between speed and accuracy of noise figure measurements. To optimize the trade-off, it is necessary to eliminate all avoidable errors and to quantify the uncertainties that remain. This paper will walk you through how to improve noise figure measurement accuracy using the Y-Factor method by following a 3-stage process:
You will also learn how to use software tools to calculate remaining uncertainties and practical techniques to reduce uncertainties. Lastly, this paper provides a checklist for improving noise figure measurement accuracy. Download and learn more.