access icon free Phase noise prediction for static frequency dividers and ring oscillators

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.

Inspec keywords: Ge-Si alloys; phase noise; BiCMOS integrated circuits; injection locked oscillators; millimetre wave frequency convertors; millimetre wave oscillators; integrated circuit modelling; frequency dividers; field effect MIMIC

Other keywords: static frequency dividers; phase noise behaviour; phase noise prediction; frequency 77.0 GHz; phase noise model; injection-locked modes; phase noise limits; size 0.13 mum; free-running modes; SiGe

Subjects: Bipolar integrated circuits; Oscillators; Semiconductor integrated circuit design, layout, modelling and testing; Convertors; Mixed technology integrated circuits; Microwave integrated circuits

References

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