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Amplifier noise measurements at NIST

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2 Author(s)
Wait, David F. ; Div. of Electromagn. Fields, Nat. Inst. of Stand. & Technol., Boulder, CO, USA ; Randa, J.

We have recently measured the noise characteristics of two low-noise commercial amplifiers in the 2.0-4.0 GHz frequency range. The tests were part of a program to develop and validate measurement methods for a noise-figure measurement service. Measured noise figures were about 0.5±0.04 dB. We present the results and the accompanying uncertainties. We also describe the measurement method and summarize the many checks that were used to validate the method

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Instrumentation and Measurement, IEEE Transactions on  (Volume:46 ,  Issue: 2 )