Graduate Thesis Or Dissertation
 

Phase noise models for single-ended ring oscillators

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/n009w526j

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  • The tremendous growth of wireless and mobile communications has resulted in placing of stringent requirements on the channel spacing and, by implication, on the phase noise of oscillators, typically mandating the use of passive LC oscillators with high quality factor (Q). However the trend towards large-scale integration and low cost makes it desirable to implement ring oscillators monolithically using CMOS but they generally have inferior phase noise performance compared to LC oscillators. Currently there is no tool available for the designer to analyze the effect of oscillator phase noise on the performance of the communication system. Thus an accurate and efficient, system level model for oscillator phase noise which can be used in simulation is of great importance. In this thesis, two system level phase noise models accurate at the circuit level, namely Hajimiri Phase Noise model and Digital FIR Filter model for Phase Noise are discussed and implemented in MATLAB's SIMULINK environment to bridge the gap in tools available for circuit level design and system level design of communication systems.
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file details GodboleDevavrata2001.pdf 2017-08-15 Pubblico Scaricare