Characterization of On-Wafer Diode Noise Sources

A set of wafer probeable diode noise source transfer standards are characterized using on-wafer noise temperature methods developed recently at the National Institute of Standards and Technology (NIST). This paper reviews the methods for accurate on-wafer measurements of noise temperature and details the preliminary design and construction of the transfer standards. Measurements are presented of their noise temperatures at frequencies from 8 to 12 GHz. Such transfer standards could be used in interlaboratory comparisons or as a verification tool for checking on-wafer noise calibration accuracy.

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