Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer

Bibliographic Details
Main Author:	Suh, Inwon
Language:	English
Published:	The Ohio State University / OhioLINK 2011
Subjects:	Electrical Engineering
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=osu1307567431

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-osu13075674312021-08-03T06:03:15Z Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer Suh, Inwon Electrical Engineering Oscillators play a crucial role in wireless communication systems since they are used together with mixers for frequency translation. To design discrete oscillators in a more efficient way in terms of output power, a multi-harmonic real-time open-loop active load pull technique was developed and used to find the optimal fundamental and harmonic load impedances. Multi-harmonic loaded load circuits were then designed and implemented to approach the optimal multi-harmonic load impedances and realize a stand-alone oscillator. Then, a new behavioral modeling technique based on power dependent Volterra series was developed to model negative-resistance oscillators. The derived behavioral model predicts the harmonic load-pull behaviors and the output power characteristics of oscillators and assists with the oscillator design. The noise characteristic of oscillator is also of great importance in communication circuits. A new generalized 1/f Kurokawa noise analysis applicable to both low and high Q oscillators is proposed for 1/f phase and amplitude noise. A theoretical correspondencebetween the new generalized Kurokawa theory and the impulse sensitivity function and the perturbation projection vector analyses is also derived. The proposed generalized Kurokawa theory is then applied to a Van Der Pol oscillator, a BJT Colpitts oscillator and a CMOS ring-oscillator, and a pHEMT oscillator and is verified to yield comparable results to those obtained from the matrix conversion method and the experimental result. Also, an 1/f additive phase noise analysis for the injection-locked oscillator is presented. An additive phase noise measurement system integrated with an LSNA is also developed to effectively acquire the model parameters needed. The validity of the analytic solution is finally verified to yield reasonable agreement to the experimental result. The additive phase noise measurement system integrated with a LSNA and a tunable monochromatic light source is further applied to characterize the additive phase noise performance of the both passivated and unpassivated AlGaN/GaN HEMT at 2 GHz under various operating conditions. Illumination with different photon energies, different drain voltages, and different load impedances are used to probe the dependence of the additive phase noise on the trap and 2DEG population. 2011-09-06 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1307567431 http://rave.ohiolink.edu/etdc/view?acc_num=osu1307567431 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Electrical Engineering
spellingShingle	Electrical Engineering Suh, Inwon Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer
author	Suh, Inwon
author_facet	Suh, Inwon
author_sort	Suh, Inwon
title	Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer
title_short	Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer
title_full	Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer
title_fullStr	Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer
title_full_unstemmed	Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer
title_sort	design, modeling, and noise measurement of oscillators using a large signal network analyzer
publisher	The Ohio State University / OhioLINK
publishDate	2011
url	http://rave.ohiolink.edu/etdc/view?acc_num=osu1307567431
work_keys_str_mv	AT suhinwon designmodelingandnoisemeasurementofoscillatorsusingalargesignalnetworkanalyzer
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Design, Modeling, and Noise Measurement of Oscillators Using a Large Signal Network Analyzer

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