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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Automated analysis, design, and optimization of low noise oscillators /

Vytyaz, Igor. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 156-161). Also available on the World Wide Web.
22

Theory and experiment of injection locked wireless communication system.

January 1999 (has links)
by Ng Ho Hing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references (leaves 118-120). / Abstract also in Chinese. / Abstract --- p.2 / Acknowledgement --- p.3 / Content --- p.4 / Chapter Chapter 1: --- Introduction --- p.6 / Chapter Chapter 2: --- Background and Theories --- p.11 / Chapter 2.1 --- Background History --- p.11 / Chapter 2.2 --- Circuit Theories --- p.12 / Chapter 2.3 --- Electromagnetic Wave Theories --- p.14 / Chapter 2.3.1 --- Finite Difference Time Domain Method --- p.14 / Chapter 2.4 --- Active Antenna theory --- p.23 / Chapter 2.4.1 --- Active Component Finite Difference Time Domain --- p.23 / Chapter Chapter 3: --- Injection Locked Mixer --- p.32 / Chapter 3.1 --- Introduction --- p.32 / Chapter 3.2 --- Circuit Topology and Theory --- p.32 / Chapter 3.2.1 --- Mixer Fundamental --- p.32 / Chapter 3.2.2 --- Oscillator Fundamental --- p.33 / Chapter 3.2.3 --- Injection locking theory --- p.35 / Chapter 3.2.4 --- Regenerative mixer theory --- p.38 / Chapter 3.3 --- Design Methodology --- p.40 / Chapter 3.3.1 --- DC Bias point consideration --- p.40 / Chapter 3.3.2 --- AC signal path consideration --- p.42 / Chapter 3.3.3 --- Mixing and feedback at the base-emitter junction --- p.46 / Chapter 3.3.4 --- Final Circuit Configuration --- p.48 / Chapter 3.4 --- Circuit Characteristics --- p.49 / Chapter 3.4.1 --- Experiment parameters --- p.50 / Chapter 3.4.2 --- "Relationship between conversion gain, injection power and center frequency" --- p.50 / Chapter 3.4.2 --- Locking Bandwidth and phase shift --- p.56 / Chapter 3.4.3 --- "Regenerative Effect, Mode 1 injection mixing" --- p.58 / Chapter 3.4 --- Transient simulation --- p.63 / Chapter 3.4.1 --- DC Bias Simulation --- p.64 / Chapter 3.4.2 --- AC Simulation --- p.66 / Chapter 3.5 --- Summary --- p.78 / Chapter Chapter 4: --- Injection Locked Transceiver --- p.79 / Chapter 4.1 --- System Architecture --- p.79 / Chapter 4.2 --- Circuit Design --- p.81 / Chapter 4.2.1 --- Up-conversion Consideration --- p.81 / Chapter 4.2.2 --- Local Oscillator Consideration --- p.81 / Chapter 4.2.3 --- Bias Consideration --- p.82 / Chapter 4.2.4 --- Active Down-converting Mixer --- p.83 / Chapter 4.2.5 --- Mode 2 injection Mixing --- p.85 / Chapter 4.3 --- Antenna Design --- p.85 / Chapter 4.3.1 --- Antenna Choice --- p.85 / Chapter 4.3.1 --- FDTD Characterization --- p.85 / Chapter 4.4 --- Integration --- p.87 / Chapter 4.4.1 --- Matching Techniques --- p.87 / Chapter 4.5 --- INJECTION LOCKED OSCILLATOR (LO) OPTIMIZATION --- p.89 / Chapter 4.5.1 --- Active Mixer Optimization --- p.89 / Chapter 4.6 --- Simulation using Extended FTDT --- p.90 / Chapter 4.7 --- Discussion --- p.91 / Chapter 4.8 --- Summary --- p.91 / Chapter Chapter 5: --- Injection Locked System --- p.92 / Chapter 5.1 --- Introduction --- p.92 / Chapter 5.2 --- System Requirement --- p.93 / Chapter 5.3 --- System Architecture --- p.93 / Chapter 5.3.1 --- Sub-system Choices --- p.95 / Chapter 5.3.2 --- Frequency Synthesizer --- p.96 / Chapter 5.3.3 --- Active Transceiver --- p.96 / Chapter 5.3.4 --- IF System --- p.97 / Chapter 5.4 --- System Performance --- p.98 / Chapter 5.4.1 --- Stability --- p.98 / Chapter 5.4.2 --- Field pattern of the antenna --- p.100 / Chapter 5.4.3 --- Locking Bandwidth versus Injection Power --- p.101 / Chapter 5.4.4 --- Radiative Sensitivity and Image Selectivity --- p.102 / Chapter 5.4.5 --- Intermodulation --- p.103 / Chapter 5.4.6 --- Output Power vs Injection Frequency --- p.105 / Chapter 5.4.7 --- IF Output Vs Frequency --- p.106 / Chapter 5.4.8 --- IF Output vs DC Supply --- p.107 / Chapter 5.4.9 --- Output Power --- p.108 / Chapter 5.4.10 --- Type Approval Consideration --- p.108 / Chapter 5.4.11 --- Manufacturability consideration --- p.113 / Chapter Chapter 6: --- Summary and Conclusion --- p.114 / Chapter 6.1 --- Summary and Contribution --- p.114 / Chapter 6.2 --- Future Work --- p.115 / Bibliography --- p.118 / Publication List --- p.120
23

Prediction of phase noise and jitter in ring oscillators

Barton, Nathen 05 March 2002 (has links)
This thesis presents distinctly different methods of accurately predicting phase noise and absolute jitter in ring oscillators. The phase noise prediction methods are the commercially available SpectreRF and isf_tool, a simulator developed in this work from the Hajimiri and Lee theory of phase noise. Absolute jitter due to deterministic supply and substrate noise is predicted by Spectre time domain simulations and equations developed that can predict the absolute jitter due to a sinusoidal noise source at any frequency. These jitter prediction methods show that ring oscillator circuits respond differently to deterministic noise that is injected symmetrically versus noise that is injected asymmetrically, and a new jitter metric, peak jitter, is developed in this work to characterize absolute jitter caused by deterministic noise sources. These prediction methods are validated with measurements from two test chips with a combined 18 oscillators and 5 distinct architectures, and both are fabricated in the TSMC 0.35μm process. Each prediction method is shown to be consistent with over 2500 phase noise measurements taken from 10 oscillators and 5 architectures and over 1200 absolute jitter measurements due to sinusoidal supply and substrate noise taken from 11 oscillators and 3 architectures. / Graduation date: 2002
24

Low sensitivities and roundoff noise digital oscillators and filters design /

Lee, Wah-ching. January 1987 (has links)
Thesis (M. Phil.)--University of Hong Kong, 1988.
25

Tribological study of carbon nanotube oscillators

Ma, Chi-chiu., 馬志超. January 2004 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
26

Low sensitivities and roundoff noise digital oscillators and filters design

李華淸, Lee, Wah-ching. January 1987 (has links)
published_or_final_version / Electrical Engineering / Master / Master of Philosophy
27

Nonlinear effects and synchronization in MEMs oscillators

Agrawal, Deepak Kumar January 2013 (has links)
No description available.
28

Thermodynamics of the Henon-Heiles oscillators

Alberti, Mathias V. 08 1900 (has links)
No description available.
29

Frequency skipping in negative resistance oscillators with applications to crystal-controlled monolithic phase-locked loops

Walker, Stephen Scott 08 1900 (has links)
No description available.
30

Phase controlled oscillator for frequency modulation

Lee, Ching Hsiung 08 1900 (has links)
No description available.

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