Browsing Electrical and Computer Engineering by Title
Now showing items 784-803 of 1972
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High Resolution/Wideband on-Chip Phase-Shifting
(University of Waterloo, 2011-08-17)A new active LO phase shifter was introduced and implemented in a 2x2 wide band MIMO receiver. The chip was designed with STMicroelectronics 90nm technology. The main advantages of the proposed phase shifter over previous ... -
High Voltage Grounding Systems
(University of Waterloo, 2011-02-10)Minimization of Construction Costs of Substation Grounding Grids: In every electrical installation, one of the most important aspects is adequate grounding; in particular, the grounding of high-voltage substations to protect ... -
High-Efficiency Millimeter-Wave Front-Ends for Large Phased-Array Transmitters
(University of Waterloo, 2020-10-26)The ever-increasing demand for wireless broadband connectivity requires infrastructure capable of supporting data transfer rates at multi-Gbps. To accommodate such heavy traffic, the channel capacity for the given spectrum ... -
High-Frame-Rate Ultrasound Imaging Innovations for Complex Flow Quantification
(University of Waterloo, 2021-09-07)Vascular pathology such as atherosclerosis or arterial stiffening involves significant disruption in the blood flow dynamics found in the vasculature, with complex behavior such as jets and swirling typically seen in ... -
High-level Information Fusion for Constrained SMC Methods and Applications
(University of Waterloo, 2014-09-22)Information Fusion is a field that studies processes utilizing data from various input sources, and techniques exploiting this data to produce estimates and knowledge about objects and situations. On the other hand, human ... -
High-Performance Piezoelectric Nanogenerators Based on Hybrid Perovskite Nanomaterials for Energy-Harvesting
(University of Waterloo, 2023-03-21)With the increasing drive to create self-powering nano/micro-electromechanical systems (NEMS/MEMS), maximizing the output performance of piezoelectric nanogenerators (PENGs) is essential. Organic-inorganic halide perovskites ... -
High-Performance Reconfigurable Piezoelectric Resonators and Filters for RF Frontend Applications
(University of Waterloo, 2022-09-08)A conventional RF frontend module consists of many filters where each filter is allocated for a specific frequency band. These filters are connected through multiplexing switch networks to support multi-band wireless ... -
A High-Performance Three-Phase Grid-Connected PV System Based On Multilevel Current Source Inverter
(University of Waterloo, 2013-02-22)Current Source Inverter (CSI) topology is gaining acceptance as a competitive alternative for grid interface of renewable energy systems due to its unique and advantageous features. Merits of CSI over the more popular ... -
High-Performance, Energy-Efficient CMOS Arithmetic Circuits
(University of Waterloo, 2014-10-16)In a modern microprocessor, datapath/arithmetic circuits have always been an important building block in delivering high-performance, energy-efficient computing, because arithmetic operations such as addition and binary ... -
High-Q Millimeter Wave RF Filters and Multiplexers
(University of Waterloo, 2021-10-04)For a long period of time, millimeter waves (mm-Wave) were considered unsuitable for wireless data transmission due to high attention while propagating in the atmosphere. Over the past few years, due to the vigorous ... -
High-Q Multi-band Filters
(University of Waterloo, 2019-09-05)Recent development of multifunctional communication systems capable of processing large amount of data has triggered the demand for novel payload configurations with advanced filtering functions. To increase the payload ... -
A High-Resolution CMOS Single-Photon-Counting Spectrographic X-Ray Imager
(University of Waterloo, 2023-09-01)Digital X-ray imagers for clinical mammography and computed tomography (CT) have been recently taking advantage of the noise-rejection properties of single-photon-counting (SPC) architectures. However, conventional SPC ... -
A High-Resolution Direct-Conversion CMOS X-Ray Imager with Code-Division-Multiplexed Readout
(University of Waterloo, 2023-04-21)This thesis presents the design and characterization of a high-spatial-resolution direct-conversion X-ray imager built using complementary metal-oxide-semiconductor (CMOS) technology integrated with an amorphous-selenium ... -
High-Speed Analog-to-Digital Converters for Broadband Applications
(University of Waterloo, 2008-01-15)Flash Analog-to-Digital Converters (ADCs), targeting optical communication standards, have been reported in SiGe BiCMOS technology. CMOS implementation of such designs faces two challenges. The first is to achieve a ... -
High-Speed Clocking Deskewing Architecture
(University of Waterloo, 2007-05-10)As the CMOS technology continues to scale into the deep sub-micron regime, the demand for higher frequencies and higher levels of integration poses a significant challenge for the clock generation and distribution design ... -
High-Speed Elliptic Curve and Pairing-Based Cryptography
(University of Waterloo, 2011-04-25)Elliptic Curve Cryptography (ECC), independently proposed by Miller [Mil86] and Koblitz [Kob87] in mid 80’s, is finding momentum to consolidate its status as the public-key system of choice in a wide range of applications ... -
High-Volume-Rate Ultrasound for Quantitative Assessments of Vascular Function
(University of Waterloo, 2023-12-12)Free flap surgery is a common reconstructive technique to repair tissue damage after trauma or cancer removal. This complex procedure involves the transfer of tissue, along with its associated blood supply, from one ... -
Highly Efficient Planar Antenna System Based on the Planar Waveguide Technology for Low Cost Millimeter-Wave Applications
(University of Waterloo, 2011-11-11)This thesis investigates the integration of planar antennas, such as Dielectric Resonator Antennas (DRAs) to the planar waveguide structure, specifically the Substrate Integrated Waveguide (SIW) for high radiation efficiency ... -
Highly Scalable and Secure Mobile Applications in Cloud Computing Systems
(University of Waterloo, 2013-04-25)Cloud computing provides scalable processing and storage resources that are hosted on a third-party provider to permit clients to economically meet real-time service demands. The confidentiality of client data outsourced ... -
Hillock-free and atomically smooth InSb QWs grown on GaAs substrates by MBE
(Elsevier, 2019-05-01)Comprehensive studies on the surface morphological evolution of AlInSb metamorphic buffers and InSb QWs grown on top were conducted as a function of the GaAs (0 0 1) substrate offcut angles. We confirmed our earlier ...