Oscillators play an important role in the performance of various radio frequency (RF) systems. The generation of stable carrier and clock frequencies is necessary at both the transmitter and receiver ends of a communication system. Phase noise is the parameter used to characterize an oscillator frequency stability. This thesis introduces a phase noise measurement technique using a phase-locked loop. A 100 MHz Colpitt’s oscillator, for the phase noise source, was designed and built. The output of the oscillator was mixed down to 10 MHz, before a phase-locked loop extracted the phase noise information. Measurements were taken at RF frequencies using an HP spectrum analyzer. Finally, a feedback phase noise model was derived, such that oscillators can be designed with phase noise being a design parameter.
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Belkerdid, Madjid A.
Master of Science (M.S.)
College of Engineering
Length of Campus-only Access
Masters Thesis (Open Access)
Jimenez, Luis M., "Phase-Locked Loop Based Oscillator Phase Noise Measurement Technique" (1986). Retrospective Theses and Dissertations. 4980.
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