An experimental investigation into the validity of Leeson's equation for low phase noise oscillator design

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dc.contributor.advisorDe Swardt, J. B.en_ZA
dc.contributor.advisorVan der Walt, P. W.en_ZA
dc.contributor.authorVan der Merwe, Johnen_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering.
dc.date.accessioned2010-11-18T12:36:55Zen_ZA
dc.date.accessioned2010-12-15T10:44:25Z
dc.date.available2010-11-18T12:36:55Zen_ZA
dc.date.available2010-12-15T10:44:25Z
dc.date.issued2010-12en_ZA
dc.descriptionThesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010.en_ZA
dc.descriptionThesis presented in partial fulfilment of the requirements for the degree Master of Science in Engineering at the University of Stellenboschen_ZA
dc.description.abstractENGLISH ABSTRACT: In 1966, D.B. Leeson presented his model on phase noise in a letter entitled A Simple Model of Feedback Oscillator Noise Spectrum. This model usually requires an additional e ffective noise figure in order to conform with measured results. (This e ffective noise fi gure has to be determined by means of curve-fi tting Leeson's model with the measured results.) The model is, however, relatively simple to use, compared with other more accurate phase noise models that have since been developed and which can only be solved numerically with the aid of computers. It also gives great insight regarding component choices during the design process. Therefore several experiments were conducted in order to determine conditions under which Leeson's model may be considered valid and accurate. These experiments, as well as the conclusions drawn from their results, are discussed in this document.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: In 1966 stel D.B. Leeson sy faseruis model bekend in 'n brief getiteld A Simple Model of Feedback Oscillator Noise Spectrum. Hierdie model vereis gewoonlik die gebruik van 'n bykomende e ektiewe ruissyfer, sodat die model ooreenstem met die gemete resultate. (Hierdie e ektiewe ruissyfer kan slegs bepaal word deur middel van krommepassings tussen Leeson se model en die gemete resultate.) Die model is egter relatief eenvoudig om te gebruik in teenstelling met ander, meer akkurate, faseruis modelle wat sedertdien ontwikkel is en slegs met behulp van rekenaars opgelos kan word. Dit bied ook onoortre ike insig ten opsigte van komponent keuses tydens die ontwerpsproses. Om hierdie rede is verskeie eksperimente uitgevoer met die doel om toestande te identi seer waaronder Leeson se model as geldig en akkuraat geag kan word. Hierdie eksperimente, asook die gevolgtrekkings wat van hul resultate gemaak is, word in hierdie dokument behandel.af
dc.format.extent99 p. : ill.
dc.identifier.urihttp://hdl.handle.net/10019.1/5424
dc.language.isoen
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectLeeson's equationen_ZA
dc.subjectOscillator designen_ZA
dc.subjectPhase noiseen_ZA
dc.subjectCircuit linearityen_ZA
dc.subjectDissertations -- Electronic engineeringen
dc.subjectTheses -- Electronic engineeringen
dc.subjectOscillatorsen
dc.titleAn experimental investigation into the validity of Leeson's equation for low phase noise oscillator designen_ZA
dc.typeThesis
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