An FBAR/CMOS Frequency/Phase Discriminator and Phase Noise Reduction System

@article{Imani2015AnFF,
  title={An FBAR/CMOS Frequency/Phase Discriminator and Phase Noise Reduction System},
  author={Alireza Imani and Hossein Hashemi},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2015},
  volume={63},
  pages={1658-1665}
}
A phase noise reduction scheme using a sensitive resonator-based low-noise phase-frequency discriminator is presented in this paper. The discriminator uses a high quality factor thin film bulk acoustic resonator in a notch filter configuration with common-mode traps to reduce the low-frequency noise up-conversion. The phase noise reduction scheme comprises of a main feedback loop to lock a voltage-controlled oscillator to the discriminator and another loop to adjust the depth of the notch. Two… CONTINUE READING