Measuring and Certifying Phase Noise Performance of a Low-Noise RF Source

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Measuring and Certifying Phase Noise Performance of a Low-Noise RF Source (156.63 KB)

A low phase noise version of a new signal source instrument has been developed specifically for RF and Microwave calibration applications. In addition to developing the signal source itself, it was necessary to implement a solution for phase noise measurement which could be easily and cost effectively integrated into existing factory and service center calibration systems. Performing measurements to evaluate the performance achieved against aggressive target specifications during design development and also to routinely test and certify product performance in manufacturing and service presented a variety of technical challenges. This paper outlines the measurement techniques employed and the steps taken to confirm and validate the results obtained.