Noise Figure vs. PM Noise Measurements: A Study at Microwave Frequencies

  title={Noise Figure vs. PM Noise Measurements: A Study at Microwave Frequencies},
  author={Archita Hati and David A Howe and Fred L. Walls and D. Walker},
This paper addresses two issues: (i) it compares the usefulness of phase-modulation (PM) noise measurements vs. noise figure (NF) measurements in characterizing the merit of an amplifier, and (ii) it reconciles a general misunderstanding in using –174 dBc/Hz (relative to carrier input power of 0 dBm) as thermal noise level. The residual broadband (white PM) noise is used as the basis for estimating the noise figure (NF) of an amplifier. We have observed experimentally that many amplifiers show… CONTINUE READING
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