How Low Can They Go?: Oscillator Phase Noise Model, Theoretical, Experimental Validation, and Phase Noise Measurements

@article{Poddar2013HowLC,
  title={How Low Can They Go?: Oscillator Phase Noise Model, Theoretical, Experimental Validation, and Phase Noise Measurements},
  author={Ajay K. Poddar and Ulrich L. Rohde and Anisha M. Apte},
  journal={IEEE Microwave Magazine},
  year={2013},
  volume={14},
  pages={50-72}
}
Noise is associated with all the components of the oscillator circuit; however, the major contribution of the noise in an oscillator is from the active device, which introduces amplitude modulation (AM) and phase modulation (PM) noise. The conventional wisdom is to ignore AM component of the noise because the gain limiting effects of the active device operating under saturation, allowing only little variation in the output amplitude due to the noise in comparison to PM noise component, which… 
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