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Noise Modeling and Characterization of Nonlinear RF/Microwave Components

Hoft, Richard Paul (2018) Noise Modeling and Characterization of Nonlinear RF/Microwave Components. PhD thesis, University of Leeds.

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Hoft_RP_Electronic and Electrical Engineering_PhD_2018.pdf - Final eThesis - complete (pdf)
Restricted until 1 December 2023.

Abstract

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.

Item Type: Thesis (PhD)
Academic Units: The University of Leeds > Faculty of Engineering (Leeds)
The University of Leeds > Faculty of Engineering (Leeds) > School of Electronic & Electrical Engineering (Leeds)
The University of Leeds > Faculty of Engineering (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Microwaves and Photonics (Leeds)
Depositing User: R. P. Hoft
Date Deposited: 27 Nov 2018 12:43
Last Modified: 27 Nov 2018 12:43
URI: http://etheses.whiterose.ac.uk/id/eprint/22127

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