Keywords

Phase noise measurement, Colpitt oscillator (100 MHz), PLL-based phase detection, Frequency downconversion to 10 MHz, Feedback phase-noise model

Abstract

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.

Notes

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Graduation Date

1986

Semester

Summer

Advisor

Belkerdid, Madjid A.

Degree

Master of Science (M.S.)

College

College of Engineering

Format

PDF

Pages

81 pages

Language

English

Rights

Public Domain

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0020111

Subjects

Phase-locked loops--Design and construction; Phase-locked loops--Mathematical models; Radio frequency oscillators--Design and construction; Electronic circuits--Noise--Measurement; Frequency stability--Measurement

Accessibility Status

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