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Phase noise prediction for static frequency dividers and ring oscillators

Phase noise prediction for static frequency dividers and ring oscillators

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This Letter presents a method of predicting the phase noise limits of static frequency dividers. The proposed phase noise model for free-running and injection-locked modes is based on the circuit parameters only. The model provides an intuitive comprehension of the phase noise behaviour of static frequency dividers and is proved to be useful in primary hand calculations. The method was verified against measurement results of a static frequency divider-by-two, operated at 77 GHz and fabricated in a SiGe process.

References

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      • 1. Ergintav, A., Herzel, F., Borngraeber, J., et al: ‘Low power and low-noise programmable frequency dividers in a 130 nm SiGe BiCMOS technology’. 15th IEEE Int. New Circuits and Systems Conf., Strasbourg, France, June 2017, pp. 105108.
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      • 3. Finocchiaro, S., Palmisano, G., Salerno, R., et al: ‘Design of bipolar RF ring oscillators’. Proc. IEEE Int. Conf. on Electronics, Circuits and Systems, Pafos, Cyprus, September 1999, vol. 1, pp. 58.
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      • 6. Zhao, D., Reynayert, P.: ‘CMOS 60-GHz and E-band power amplifiers and transmitters’ (Springer International Publishing, Cham, Switzerland, 2015).
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      • 8. Rubiola, E.: ‘Phase noise and frequency stability in oscillators’ (Cambridge University Press, Cambridge, UK, 2008).
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