Browsing Electrical and Computer Engineering by Title
Now showing items 1240-1259 of 1985
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A Novel Power-Scalable Wideband Power Amplifier Linearization Technique
(University of Waterloo, 2019-08-29)Global mobile traffic is expected to continue to increase at an astonishing rate in the future, due to the ever-increasing number of mobile phone subscribers and the adoption of smart devices which generate significantly ... -
Novel Predistortion System for 4G/5G Small-Cell and Wideband Transmitters
(University of Waterloo, 2020-12-15)To meet the growing demand for mobile data, various technologies are being introduced to wireless networks to increase system capacity. On one hand, large number of small-cell base stations are adopted to serve the reduced ... -
Novel Quadruple-mode, Dual-mode and Dual-band Dielectric Resonator Filters and Multiplexers
(University of Waterloo, 2009-08-26)Dielectric resonators offer high-Q (low loss) characteristics which make them ideal for filters with narrow bandwidth and low insertion loss specifications. They are mainly used in satellite and wireless system applications. ... -
A Novel Real Time Charging Approach for Electric Vehicles in Smart Grids
(University of Waterloo, 2017-12-19)Integration of renewable energy sources (RES) into electric grids comes with significant challenges. The produced energy from renewable sources such as wind and solar is intermittent, non-dispatchable, and uncertain. The ... -
A Novel Retro-directive Phased Array Antenna Architecture
(University of Waterloo, 2018-12-21)Mobile wireless communication scenarios can range from a simple indoor WiFi link to a satellite internet connection to an airplane. Virtually in all scenarios, dynamic changes in the propagation environment or the movement ... -
Novel RF MEMS Varactors Realized in Standard MEMS and CMOS Processes
(University of Waterloo, 2007-12-21)Micro-Electro-Mechanical Systems (MEMS) varactors have the potential to replace conventional varactor diodes, due to their high loss and non-linearity, in many applications such as phase shifters, oscillators, and tunable ... -
A Novel Sensorless Support Vector Regression Based Multi-Stage Algorithm to Track the Maximum Power Point for Photovoltaic Systems
(University of Waterloo, 2012-06-08)Solar energy is the energy derived from the sun through the form of solar radiation. Solar powered electrical generation relies on photovoltaic (PV) systems and heat engines. These two technologies are widely used today ... -
A Novel Solar Cell Ionotronic Energy Pathway Inspired by an Electric Eel
(University of Waterloo, 2021-09-16)Solar cell technology can be one of the best choices for sustainable future energy. Solar energy conversion strategies inspired by nature can play a vital role in solving the significant challenges in solar cell products ... -
A Novel THz Photoconductive Source and Waveguide Based on One-dimensional Nano-grating
(University of Waterloo, 2013-01-25)A terahertz photoconductive source structure with nano-grating electrodes is proposed. The resonance modes of the one-dimensional nano-grating and their affect the optical power absorption are studied. In addition, an ... -
Novel Volt/Var Control Strategies for Active Distribution Systems
(University of Waterloo, 2020-01-07)Power distribution networks are rapidly evolving as active distribution systems, as a result of growing concerns for the environment and the shift towards renewable energy sources (RESs). The introduction of distributed ... -
Novelty Detection for SilGeo Hardware Assurance
(University of Waterloo, 2023-05-05)In today's world, electronic hardware-level threats have become increasingly common. These threats can range from the infiltration of counterfeit or malicious hardware in the supply chain to the use of electronic attack ... -
Numerical analysis and simulation of graphene assisted silicon-nitride waveguide
(University of Waterloo, 2021-09-20)To address the increased demand for high performance nonlinear integrated photonic devices, this thesis investigates a potential solution to the intrinsic low nonlinear response of silicon nitride waveguides by integrating ... -
Numerical and Statistical Performance Analysis of Multi-Gate Negative Capacitance Field-Effect Transistors
(University of Waterloo, 2022-12-20)With the continued scaling of field-effect transistors (FETs) we have past the point where short-channel effects (SCEs) become a dominate factor in device performance. In particular, FETs suffer from increased leakage ... -
Numerical Modeling of Flexible ZnO Thin-Film Transistors Using COMSOL Multiphysics
(University of Waterloo, 2013-07-26)Increasing attention has been directed towards the development of optically transparent and mechanically flexible thin film transistors (TFTs) and associated circuits based on the transition metal oxides. These flexible ... -
Object Histories in Java
(University of Waterloo, 2010-04-30)Developers are often faced with the task of implementing new features or diagnosing problems in large software systems. Convoluted control and data flows in large object-oriented software systems, however, make even simple ... -
Objective Quality Assessment and Optimization for High Dynamic Range Image Tone Mapping
(University of Waterloo, 2014-06-06)Tone mapping operators aim to compress high dynamic range (HDR) images to low dynamic range ones so as to visualize HDR images on standard displays. Most existing works were demonstrated on specific examples without being ... -
Observers on linear Lie groups with linear estimation error dynamics
(University of Waterloo, 2012-09-20)A major motivation for Lie group observers is their application as sensor fusion algorithms for an inertial measurement unit which can be used to estimate the orientation of a rigid-body. In the first part of this thesis ... -
An Offshore Wind Farm Featuring Differential Power Processing
(University of Waterloo, 2021-12-22)Offshore wind farms are a rapidly growing technology used to harvest wind energy on the open seas where wind speeds are significantly higher and steadier than onshore. Current wind farms located far away from shore (e.g., ... -
On A New Approach to Model Reference Adaptive Control
(University of Waterloo, 2008-08-12)The objective of adaptive control is to design a controller that can adjust its behaviour to tolerate uncertain or time-varying parameters. An adaptive controller typically consists of a linear time-invariant (LTI) compensator ... -
On Achieving Secure Message Authentication for Vehicular Communications
(University of Waterloo, 2010-05-19)Vehicular Ad-hoc Networks (VANETs) have emerged as a new application scenario that is envisioned to revolutionize the human driving experiences, optimize traffic flow control systems, etc. Addressing security and privacy ...