Phase noise prediction for static frequency dividers and ring oscillators

• Published in: Electronics letters Vol. 54; no. 25; pp. 1427 - 1428
• Main Authors: Dyskin, A, Kallfass, I
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 13.12.2018
• Subjects: BiCMOS integrated circuits; Circuits and systems; field effect MIMIC; free‐running modes; frequency 77.0 GHz; frequency dividers; Ge‐Si alloys; injection locked oscillators; injection‐locked modes; integrated circuit modelling; millimetre wave frequency convertors; millimetre wave oscillators; phase noise; phase noise behaviour; phase noise limits; phase noise model; phase noise prediction; SiGe; size 0.13 mum; static frequency dividers; millimetre wave frequency convertors; frequency dividers; field effect MIMIC; Ge-Si alloys; phase noise model; phase noise prediction; phase noise limits; free-running modes; frequency 77.0 GHz; SiGe; static frequency dividers; size 0.13 mum; integrated circuit modelling; BiCMOS integrated circuits; injection locked oscillators; phase noise behaviour; phase noise; injection-locked modes; millimetre wave oscillators
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2018.6498

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 $0.13 {\rm\mu} {\rm m}$0.13μm process.