Differential Noise Figure Measurements
Measurement analysis of both correlated and uncorrelated noise can be conducted with the new differential noise figure technique. The result is more comprehensive characterization of actual device performance for greater design confidence. It is a superior method than conventional approaches that include an RF balun with only an S-parameter description or neglect correlation between device under test (DUT) output ports, which lead to improper characterization of differential devices. As operating frequencies continue to rise due to 5G, the ability to more accurately characterize device performance will take on added importance.