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Title: Noise modeling and characterization of nonlinear RF/microwave components
Author: Hoft, Richard Paul
ISNI:       0000 0004 7431 7991
Awarding Body: University of Leeds
Current Institution: University of Leeds
Date of Award: 2018
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A generalized scattered noise behavioral model for time-invariant nonlinear microwave circuits is presented. The formalism uses noise waves and large-signal scattering functions known as X-parameters to extract a multi-port network's noise correlation matrix. Further processing yields figures-of-merit including effective input noise temperature and noise factor. Within the small-input signal space, it will be shown that the above expressions reduce to a familiar form describing noise wave influence governed by the network's S-parameter functions. Using the generalized form, two examples given in context to embedded nonlinear one-port and two-port configurations are offered with each presented to matched termination networking. Both cases use a passive source and load in the analysis. Numerical versus simulated experimental results will be compared. Results in the two-port case yield its noise factor. Lastly, pursuant to this study, experimental work involving software simulation and hardware measurement activities will be proposed.
Supervisor: Hunter, Ian C. ; Somjit, Nutapong Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available