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Filtering by: Creator Quinn, Thomas P. Remove constraint Creator: Quinn, Thomas P. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering Language English [eng] Remove constraint Language: English [eng]

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  • Participant Learning and Understanding within HWeekend Events

    Creator:
    Handley, Quinn M.
    Abstract:
    Hardware weekend (HWeekend) is a free 30-hour hardware development event sponsored by the College of Engineering, College of Business, and Inventors Enterprise wherein students work together in small teams to create a marketable project they can demonstrate and pitch to judges at the end of the weekend. Unlike similar events,...
    Resource Type:
    Honors College Thesis
    Full Text:
    By Quinn Handley A THESIS submitted to Oregon State University Honors College in partial

  • Substrate coupling macromodel for lightly doped CMOS processes

    Creator:
    Koteeswaran, Mohanalakshmi
    Abstract:
    A scalable macromodel for substrate noise coupling in lightly doped substrates with and without a buried layer has been developed. This model is based on Z-parameters and is scalable with contact size and separation. This model requires process dependent parameters that can be extracted easily from a small number of...
    Resource Type:
    Masters Thesis
    Full Text:
    would like to thank Dr. Michael Quinn and Prof. Roger Traylor for taking interest in my work and for

  • Physical mechanisms, device models, and lifetime projections of hot-carrier effects in CMOS transistors

    Creator:
    Hwang, Nam
    Resource Type:
    Dissertation
    Full Text:
    . Title: Physical Mechanisms, Device Models, and Lifetime P. jojecti ns of Hot-Carrier Effects in CMOS

  • Characterization and comparison of 830 nm laser diodes fabricated in MOCVD and MBE grown heterostructures

    Creator:
    Ramamoorthy, Balaji P.
    Resource Type:
    Masters Thesis
    Full Text:
    Fabricated in MOCVD and MBE Grown Heterostructures AN ABSTRACT OF THE THESIS OF Balaji P. Ramamoorthy for

  • A P-well GaAs MESFET technology

    Creator:
    Canfield, Philip C.
    Abstract:
    The semiconductor gallium arsenide (GaAs) has many potential advantages over the more widely used semiconductor silicon (Si). These include higher low field mobility, semi-insulating substrates, a direct band-gap, and greater radiation hardness. All these advantages offer distinct opportunities for implementation of new circuit functions or extension of the operating conditions...
    Resource Type:
    Dissertation
    Full Text:
    A P-well GaAs MESFET technology AN ABSTRACT OF THE

  • Development and characterization of AlInN as an alternating-current thin-film electroluminescent display phosphor

    Creator:
    Mueller, Matthew R.
    Resource Type:
    Masters Thesis
    Full Text:
    . Ben Lee, and Dr. Mike Quinn for serving on my committee. I wish to thank a number of people who

  • Adversarial planning by strategy switching in a real-time strategy game

    Creator:
    King, Brian D.
    Abstract:
    We consider the problem of strategic adversarial planning in a Real-Time Strategy (RTS) game. Strategic adversarial planning is the generation of a network of high-level tasks to satisfy goals while anticipating an adversary's actions. In this thesis we describe an abstract state and action space used for planning in an...
    Resource Type:
    Masters Thesis
    Full Text:
    : Adversarial Planning by Strategy Switching in a Real-Time Strategy Game Abstract approved: Alan P. Fern We

  • Drain current transient characterization of P-channel GaAs MESFET

    Creator:
    Peng, Lan L.
    Abstract:
    GaAs MESFETs are widely used in high speed integrated circuits (ICs) and microwave circuits. Due to the materials and processing methods used in GaAs MESFET fabrication, deep level traps in the substrate materials have a strong influence on device performance. In this work we used the drain current transient characterization...
    Resource Type:
    Masters Thesis
    Full Text:
    Drain current transient characterization of P-channel GaAs

  • Design and analysis techniques for nano-joule ADCs and sampling linearity

    Creator:
    Brown, Thomas (Thomas William)
    Abstract:
    Two aspects of ADC system performance are addressed in this work. First, the combination of the ADC and its associated reference are co-designed for an energy constrained remote sensing system. Second, sampling linearity is mathematically analyzed as a function of frequency to provide enhanced understanding into an ADC's requisite sampling...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Thomas Brown for the

  • Model extraction of a paddle in plastic surface-mount RF-IC packages

    Creator:
    Sundberg, Garth
    Abstract:
    Plastic packaging is a cost-effective solution for housing RF and microwave integrated circuits in low cost communication devices. While enabling low cost packaging of integrated circuits, plastic packages including the circuit ground patch (paddle) inside the package can have a significant parasitic effect on circuit performance. The purpose of this...
    Resource Type:
    Masters Thesis
    Full Text:
    Weisshaar, Professor Raghu Settaluri, and Professor Thomas Plant of the Electrical and Computer

  • Characterization and applications of low-temperature-grown MBE gallium arsenides

    Creator:
    Zhao, Pin
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Thomas K. Plant Low-temperature (LT) MBE-grown GaAs material has recently been used for fast

  • Modeling and testing of semi-insulating gallium arsenide interdigitated photodetectors

    Creator:
    Kollipara, Ravindranath Tagore
    Abstract:
    High speed photodetectors are a necessary element in broad band digital and analog optical communication systems. In this thesis easily integrable planar high speed photodetectors made on undoped semi-insulating (SI) GaAs substrates are modeled and tested. The fabrication process of the detectors is fully compatible with GaAs metal-semiconductor field effect...
    Resource Type:
    Dissertation
    Full Text:
    : Redacted for Privacy Thomas K. Plant High speed photodetectors are a necessary element in broad band

  • Towards Pactive (Passive + Active) Sensing for Security Applications

    Creator:
    Menon, Arya
    Abstract:
    Increasing threats of terrorism and contraband smuggling have led to a growing interest in millimeter wave/ THz security sensors. Recently, systems combining active and passive sensing into one unit have been proposed where the active mode provides information on range and reflectivity, and the passive mode complements the active by...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ______________________________________________________ Thomas M. Weller

  • Grating-tuned external cavity diode lasers

    Creator:
    Falconer, Beate Stephan
    Abstract:
    Diode lasers have many advantages such as small size, high efficiency and small angular dispersion of the collimated beam. However they also have some problems like lack of frequency stability. They can not be tuned in wavelength. An external cavity can solve these problems and decrease the laser linewidth. To...
    Resource Type:
    Masters Thesis
    Full Text:
    approved : Prof Dr. Thomas K. Plant Diode lasers have many advantages such as small size, high efficiency

  • A study of the photoresponse of semi-insulating gallium arsenide

    Creator:
    Schumm, Gerhard
    Abstract:
    The photoresponse behavior of semi-insulating GaAs is investigated. The photocarrier lifetime is discussed and the influence of surface and contact recombination is taken into account. Photocurrent-voltage characteristics have been measured and a mechanism for the gain in terms of space charge amplification and avalanching is suggested. The influence of deep...
    Resource Type:
    Masters Thesis
    Full Text:
    Gallium Arsenide Abstract approved: Redacted for privacy Thomas K. Plant The photoresponse behavior of

  • Wide stripe, high power diode lasers

    Creator:
    Parson, Kevin J.
    Abstract:
    Typical power outputs of commercially available diode lasers are on the order of 5 milliwatts. This thesis discusses the growth, processing and fabrication of high power (lOO's of milliwatts) diode lasers. Devices were grown by Molecular Beam Epitaxy (MBE) and by Metal Organic Chemical Vapor Deposition (MOCVD). The MOCVD diode...
    Resource Type:
    Masters Thesis
    Full Text:
    . Experimental results 35 5.1 I-V characteristics 35 5.2 P-I curves 38 5.3 Spectra 41 5.4 CW measurements

  • Electrical properties of GaAs FET structures

    Creator:
    Yang, Fanling Hsu
    Abstract:
    The electrical properties of ion-implanted GaAs FET channels are investigated by two methods. First, the channel current (I) as a function of voltage (V) is examined at different temperatures and using different voltage ramp rates. The standard FET I-V curve, which can be observed on a commercial curve tracer, is...
    Resource Type:
    Dissertation
    Full Text:
    experimental parameters related to electron trap emission from the depletion region of a p + n diode 6 2.2

  • HEMT-compatible laser diodes

    Creator:
    Eliason, Garth W.
    Resource Type:
    Masters Thesis
    Full Text:
    -Compatible Laser Diodes Abstract approved: Dr. Thomas K. Plant The second-iteration design, fabrication and

  • Alternating-current thin-film electroluminescent device optical excitation experiments

    Creator:
    Cleary, Bradford A.
    Abstract:
    This thesis investigates two methods of optical excitation of alternating-current thin-film electroluminescent (ACTFEL) devices. The two experimental methods investigated in this thesis are the photo-induced charge (PIQ) and luminescence (PIL), and the subthreshold-voltage induced transferred charge (VIQ) techniques. PIQ/PIL experiments utilize an above-bandgap laser pulse to investigate the transport properties...
    Resource Type:
    Masters Thesis
    Full Text:
    - Thomas K. Plant This thesis investigates two methods of optical excitation of alternating-current thin

  • A dual-frequency diode laser displacement sensor

    Creator:
    Hwang, Nam
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Redacted for Privacy Thomas K. Plant The purpose of this work is to develop an accurate non

  • Modeling of the orientation dependence of scanned HgCdTe infrared detectors

    Creator:
    Reudink, Mark D.
    Abstract:
    Mercury cadmium telluride is important in the detection of electromagnetic radiation in the eight to twelve micron atmospheric window for infrared imaging systems. High resolution infrared imaging systems use either large (256x256 element to 1024x1024 element) staring arrays or much smaller (1-6 element) scanned arrays in which the image is...
    Resource Type:
    Masters Thesis
    Full Text:
    Dependence of Scanned HgCdTe Infrared Detectors. Abstract approved: Redacted for Privacy Thomas K. Plant

  • Low cost, short wavelenght fiber Bragg grating strain sensor systems

    Creator:
    Vaughan, Lira
    Abstract:
    Fiber Bragg grating sensors have been constantly researched for the last ten years and have finally begun to find use in the commercial market. However, one of the major factors limiting their widespread use is their system cost. Their lightweight, flexibility, electromagnetic immunity, and small size make fiber Bragg grating...
    Resource Type:
    Masters Thesis
    Full Text:
    , Short Wavelength Fiber Bragg Grating Strain Sensor Systems. Abstract Approved: Thomas K. Plant Fiber

  • Electro-optic characterization of SrS-based alternating current thin-film electroluminescent devices

    Creator:
    Nevers, Corey A.
    Abstract:
    Two methods of electro-optically characterizing alternating-current thin-film electroluminescent (ACTFEL) devices are investigated: photo-induced transferred charge (PIQ) and luminescence (PIL), and subthreshold voltage-induced transferred charge (VIQ) techniques. Both techniques provide information related to traps within the phosphor layer. PIQ/PIL experiments monitor the transport of electrons and holes across the phosphor layer...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved- Thomas K. Plant Two methods of electro-optically characterizing alternating-current

  • Deep ultraviolet solid-state laser development

    Creator:
    Dutton, David A. (David Adam)
    Abstract:
    There is a new possibility of generating deep ultraviolet laser radiation from a solid-state source. With recent advances in material development, a new nonlinear optical crystal provides a greater damage threshold than current materials making higher conversion efficiencies possible. This thesis examines the possibility of using this crystal to generate...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: _____________________________________________________________________ Thomas K. Plant

  • Wireless Microwave Sensing in Environmental and Biomedical Applications

    Creator:
    Uluer, Ismail Hakki
    Abstract:
    This dissertation studies two different wireless microwave sensing applications in the subjects of environmental monitoring and biomedical devices. The environmental sensing application presents a design of novel wireless sensor node configurations. These nodes are intended to be used specifically in a built environment of railroad track ballast for its health...
    Resource Type:
    Dissertation
    Full Text:
    Thomas Weller This dissertation studies two different wireless microwave sensing applications

  • Fabrication and characterization of thin-film electromagnetic coils and heaters for microchannel applications

    Creator:
    Dehuff, Nicole L.
    Abstract:
    The focus of this thesis involves developing general fabrication processes relevant to the manufacture of two new devices for the Microscale technology Energy and Chemical Systems (MECS) program at Oregon State University. The two MECS devices developed, capture dots and transparent thin-film heaters (TTFHs), require unique process development for successful...
    Resource Type:
    Masters Thesis
    Full Text:
    and Heaters for Microchannel Applications Abstract approved: _______________________ _ Thomas K

  • Optical characterization of alternating-current thin-film electroluminescent phosphors and devices

    Creator:
    Lite, Kevin D.
    Resource Type:
    Masters Thesis
    Full Text:
    - Thomas K. Plant This thesis presents the results of two optical characterization measurements of

  • Fiber Bragg grating-tunable diode laser

    Creator:
    Ericksen, Doug
    Abstract:
    Continuously tunable diode laser sources coupled to single-mode fiber are useful sources for fiber Bragg grating (FBG) strain sensors. This paper describes the development and fabrication of such a device. An introduction is given describing applications of tunable lasers and some of the different methods of creating a tunable diode...
    Resource Type:
    Masters Thesis
    Full Text:
    : _______________________________________ Thomas K. Plant Continuously tunable diode laser sources coupled to single-mode fiber

  • Characteristics of semi-insulating GaAs photoconductive detectors under steady state illumination

    Creator:
    Yang, Howard C.
    Abstract:
    The optical and electrical characteristics of semi-insulating GaAs photoconductive detectors made with ohmic and Schottky contacts are studied in this thesis. Current - voltage measurements are made both in the dark and under varying power levels of HeNe laser (6328 Å) illumination. DC photocurrent gain is then calculated as a...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Redacted for Privacy Thomas K. Plant The optical and electrical characteristics of semi

  • Finite element modeling of dielectric waveguides

    Creator:
    Vishakhadatta, Gannavaram D.
    Abstract:
    Dielectric waveguides are becoming important for their numerous applications in integrated optics. The study of dielectric waveguides by analytical techniques is not sufficient for many variations in waveguide shape, anisotropy, and inhomogeneity commonly encountered in waveguide materials. This work studies the finite element method as an accurate tool for the...
    Resource Type:
    Masters Thesis
    Full Text:
    Waveguides Redacted for Privacy Abstract approved: Thomas K. Plant Dielectric waveguides are becoming

  • Image features and learning algorithms for biological, generic and social object recognition

    Creator:
    Zhang, Wei
    Abstract:
    Automated recognition of object categories in images is a critical step for many real-world computer vision applications. Interest region detectors and region descriptors have been widely employed to tackle the variability of objects in pose, scale, lighting, texture, color, and so on. Different types of object recognition problems usually require...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Thomas G. Dietterich Automated recognition of object categories in images is a critical

  • Electo-optic characterization of ZnS:Tb ACTFEL devices for probing the hot electron distribution

    Creator:
    Streicher, Keone R.
    Abstract:
    In this report, the optical characteristics of ZnS:Tb AC driven thin-film electroluminescent devices are evaluated. Luminescence at low and room temperature under a constant phosphor field is recorded in order to probe the hot electron energy distribution. Samples fabricated by atomic layer epitaxy and by sputter deposition are investigated and...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Dr. Thomas K. Plant In this report, the optical characteristics of ZnS:Tb AC driven

  • Interference cancellation for shot-code DS-CDMA in the presence of channel fading

    Creator:
    Dutta, Amit K.
    Abstract:
    Interference from other adjacent users in wireless applications is a major problem in direct-sequence code-division multiple-access (DS-CDMA). This is also known as the near-far problem where a strong signal from one user interferes with other users. The current approach to deal with the near-far problem in DS-CDMA systems is to...
    Resource Type:
    Dissertation
    Full Text:
    truly found a friend. I would also like to thank Professor Michael J. Quinn, Professor Vijai Tripathy

  • Implementation of Distributed Localized Communications

    Creator:
    Snyder, Thomas
    Abstract:
    Artificial collectives are useful for accomplishing tasks that require teamwork from multiple simple robots. Multiple robot and collective testbeds have been developed, yet none stay committed to leverage the local interactions, group size, and imperfect information assumptions that strengthen biological collectives. A review of the collective and multiple robot literature,...
    Resource Type:
    Honors College Thesis
    Full Text:
    By Thomas Snyder A THESIS submitted to Oregon State University Honors College in partial

  • Designing and Building a Bluetooth Controlled Blimp with Autonomous Capabilities

    Creator:
    Shepherd, Thomas
    Abstract:
    This thesis describes the design and implementation of a Bluetooth controlled blimp with autonomous capabilities through Dead Reckoning. Reasonable research was conducted on current autonomous systems, wireless communication techniques, and suitable microprocessors that could handle the required processing. Building a remotecontrolled blimp requires a light understanding of mechanics to build...
    Resource Type:
    Honors College Thesis
    Full Text:
    Thesis Outline AN ABSTRACT OF THE THESIS OF Thomas Shepherd for

  • Fast opamp-free delta sigma modulator

    Creator:
    Thomas, Daniel E.
    Abstract:
    Switched-capacitor (SC) circuits are commonly used for analog signal processing because they can be used to realize precision filters and data converters on an integrated circuit (IC). However, for high speed applications SC circuit operating speeds are limited by the internally-compensated opamps found in SC integrators, a common building block...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Daniel E. Thomas for the degree of

  • TIMR : Time Interleaved Multi Rail

    Creator:
    Ruggeri, Thomas L.
    Abstract:
    This work presents a new energy saving technique for modern digital designs. We propose Time Interleaved Multi-Rail (TIMR) - a method for providing two dynamic supply rails to a circuit. This technique uses the first supply rail to mask the transition delay while changing the voltage of the second rail....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Thomas L. Ruggeri for the

  • A study of time series interpolation and decimation with signal processing applications

    Creator:
    Kraemer, Thomas Fredrick
    Abstract:
    Decimation and interpolation is shown to be an effective technique for reducing the storage requirements for bandlimited time series. Interpolation and decimation is theoretically developed using z-transform theory and graphically interperted. A sequence of data acquired by sampling a sonar signal is used to demonstrate the effects of decimation. Using...
    Resource Type:
    Masters Thesis
    Full Text:
    signal processing applications AN ABSTRACT OF THE THESIS OF Thomas Fredrick Kraemer for the degree of

  • Design and simulation of a model for lymphocyte flow through single lymphnodes

    Creator:
    Heilig, Thomas
    Abstract:
    A compartmental model of lymphocyte circulation through a lymphnode is derived and simulated. The purpose of the model is to analyze experimental data and in turn design experimental plans from the analysis in order to obtain sufficient data for the organ-distributed immune response. The model will be used to predict...
    Resource Type:
    Masters Thesis
    Full Text:
    Through Single Lymphnodes AN ABSTRACT OF THE THESIS OF Thomas Heilig for the degree of Master of

  • Operation of the motor systems resource facility

    Creator:
    Rollman, Thomas E.
    Abstract:
    A state of the art motor testing facility has been built at Oregon State University. This is the largest independent testing laboratory of its type in the western United States. The construction was funded by a consortium of industrial sponsors, with a goal of becoming financially self-sufficient by charging the...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT FOR THE THESIS OF Thomas E. Rol lman for the degree

  • Optimization of interactive live free viewpoint multiview video streaming bandwidth

    Creator:
    Kramer, Richard A.
    Abstract:
    There are generally two types of multiview video:(1) 3D Multiview Video (“3D MVV” also called “2D plus delta” or “stereo” multi-view video): 3D MVV is widely deployed in cinemas and in the TV industry. 3D MVV typically entails capturing video of an object using two cameras with differing view angles...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: _____________________________________________________ Thinh P. Nguyen There are

  • Information theoretic approach to quantization and classification for signal processing, communications, and machine learning applications

    Creator:
    Thuan Nguyen D.
    Abstract:
    There are five main contributions of this dissertation. The first contribution is new closed-form expressions for channel capacity of a new class of channel matrices. The second contribution is the discovery of the structure for optimal binary quantizer and the associated methods for finding an optimal quantizer that maximizes mutual...
    Resource Type:
    Dissertation
    Full Text:
    , COMMUNICATIONS, AND MACHINE LEARNING APPLICATIONS Abstract approved: Thinh P. Nguyen There are five main

  • Ensuring quality of service in ad-hoc wireless networks using the concept of active nodes

    Creator:
    Rajogpalan, Santosh
    Abstract:
    The problem of ensuring Quality of Service (QoS) on a TCP/IP based fixed-infrastructure network has been well studied and several working proposals exist. An allied problem is that of ensuring QoS on an ad-hoc wireless network, where the requirements are similar, but the operating conditions are different enough to warrant...
    Resource Type:
    Masters Thesis
    Full Text:
    . John T. Stonick, Dr. Molly Shor and Dr. Thomas Dietterich, for the excellent courses I have taken

  • Channel Estimation, Modulation Techniques and Decoding Algorithms for Hybrid WiFi-FSO (WiFO) WLAN of Femtocells

    Creator:
    Chu, Yu-Jung
    Abstract:
    Due to the limitation of the radio frequency (RF) spectrum, it is increasingly more difficult to support billions of wireless devices in the age of Internet-of-Things. Consequently, many recent wireless indoor communication systems have been developed using free space optical (FSO) communication technologies that exploit the extremely large light spectrum...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Thinh P. Nguyen Due to the limitation of the radio frequency (RF) spectrum, it is

  • New methods for finite field arithmetic

    Creator:
    Yanik, Tuğrul
    Abstract:
    We describe novel methods for obtaining fast software implementations of the arithmetic operations in the finite field GF(p) and GF(p[superscript k]). In GF(p) we realize an extensive speedup in modular addition and subtraction routines and some small speedup in the modular multiplication routine with an arbitrary prime modulus p which...
    Resource Type:
    Dissertation
    Full Text:
    obtaining fast software implementations of the arithmetic operations in the finite field GF(p) and GFp

  • Resource allocation optimization in large scale distributed systems

    Creator:
    Duong-Ba, Thuan Hong
    Abstract:
    We studied the problem of resource allocation in large scale distributed applications such as Online Social Networks (OSN) and Cloud Computing. In such settings, resource allocation schemes need to efficient as well as adaptive to the time-varying environments. The abstract resource allocation problem concerns with how to optimally use resources...
    Resource Type:
    Dissertation
    Full Text:
    Large Scale Distributed Systems Abstract approved: Thinh P. Nguyen Bella Bose We studied the

  • Spectral modular arithmetic

    Creator:
    Saldamli, Gökay
    Abstract:
    In many areas of engineering and applied mathematics, spectral methods provide very powerful tools for solving and analyzing problems. For instance, large to extremely large sizes of numbers can efficiently be multiplied by using discrete Fourier transform and convolution property. Such computations are needed when computing π to millions of...
    Resource Type:
    Dissertation
    Full Text:
    needs. The Mersenne and Fermat rings are not the only suitable rings for efficient arithmetic. If p

  • Manufacture and characterization of novel ACTFEL materials and devices

    Creator:
    Bender, Jeffrey P.
    Abstract:
    The aim of this dissertation is to develop non-traditional approaches to alternating-current thin-film electroluminescent (ACTFEL) device fabrication. ACTFEL technology suffers from a lack of adequately bright and efficient primary-color phosphors and cannot presently compete in the low-cost display market. Therefore the research presented in this dissertation focuses on an exploration...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Jeffrey P. Bender for the

  • Influence of adjustable speed drive on induction motor fault detection using stator current monitoring.

    Creator:
    Al-Shahrani, Ali
    Abstract:
    The detection of motor faults at their incipient stage is of prime importance to any industrial plant. The introduction of adjustable speed drives has improved the control and the efficiency of induction motors, however, this has changed the nature of motor faults and how they can be detected. Current signature...
    Resource Type:
    Masters Thesis
    Full Text:
    distribution as percentages 0 10 20 30 40 50 60 P e rc e n ta g e ( % ) Bearing Stator w

  • High resolution electroluminescent display using active matrix approach

    Creator:
    Khormaei, Iranpour
    Resource Type:
    Dissertation
    Full Text:
    have been possible. I would like to thank Dr. Thomas Plant, Dr. Jack Kenney, and Dr. Robert Burton for

  • Analysis and modeling of monolithic on-chip transformers on silicon substrates

    Creator:
    Mayevskiy, Yevgeniy
    Abstract:
    Passive components, including spiral inductors and transformers, fabricated on silicon-based substrates are placing an increasing demand on radio-frequency integrated circuit (RFIC) design. Performance of the RFIC suffers from several non-ideal effects that must be taken into account in order to create a successful design. In particular, monolithic transformers can be...
    Resource Type:
    Masters Thesis
    Full Text:
    . Thomas Plant and Graduate Council Representative Dr. William Warnes for serving on my graduate

  • Amorphous multi-component metals as electrode materials

    Creator:
    Cowell, E. William
    Abstract:
    The objective of this thesis is to provide an initial demonstration of two-terminal and three-terminal electronic devices employing amorphous multi-component metallic film (AMMF) electrodes. Such a demonstration is successfully achieved in the fabrication of metal-insulator-metal (MIM) diode and hot electron transistor (HETs) structures employing ZrCuAlNi AMMF electrodes. The ultra-smooth surface...
    Resource Type:
    Masters Thesis
    Full Text:
    a crystalline material. In 1958, P. W. Anderson wrote a paper [24] that set up the framework for

  • Simulated and Experimental Characteristics of Analysis Techniques for ZrCuAlNi/AlOx/Al Metal-Insulator-Metal Tunnel Diodes

    Creator:
    Tan, Cheng
    Abstract:
    This project examines the results of current-voltage conduction mechanism analysis techniques simulated under assumed conduction conditions. Thermionic emission and Fowler-Nordheim tunneling conditions are simulated and analyzed. The resulting plots show how devices behave under different condition mechanisms. The effects of different conduction mechanisms on the results of various analysis techniques...
    Resource Type:
    Honors College Thesis
    Full Text:
    - neering Committee Member, Dr. Thomas K. Plant representing Electrical and Com- puter Engineering

  • Inorganic thin-film solar cells

    Creator:
    Spies, Jack Alexander
    Abstract:
    The primary objective of this thesis is to explore new absorber and p-type window layer materials for thin-film solar cell applications. A new thin-film electron beam deposition system has been installed, is now operational, and has been used to deposit several types of solar cell absorber layers. Material investigations include...
    Resource Type:
    Masters Thesis
    Full Text:
    to explore new absorber and p-type window layer materials for thin-film solar cell applications. A

  • The analysis and synthesis of a parallel sorting engine

    Creator:
    Ahn, Byoungchul
    Abstract:
    This thesis is concerned with the development of a unique parallel sort-merge system suitable for implementation in VLSI. Two new sorting subsystems, a high performance VLSI sorter and a four-way merger, were also realized during the development process. In addition, the analysis of several existing parallel sorting architectures and algorithms...
    Resource Type:
    Dissertation
    Full Text:
    would also like to thank Drs. James Herzog, Theodore Lewis, and Thomas Dietterich for serving on my

  • CAM : a new Circuit Augmentation Method for modeling interconnects and passive components

    Creator:
    Kolstad, Joel W.
    Abstract:
    Contemporary circuit design involves significant computer-based simulation, calling for a balance between circuit model accuracy and simulation run time. Traditionally, circuit modelers concentrated on producing either (1) physically-based models, where each element in the model correlates to a physically meaningful aspect of the device being modeled or (2) mathematically-based "macromodels,"...
    Resource Type:
    Masters Thesis
    Full Text:
    to Dr. Karti Mayaram, Dr. Thomas Plant, and my GCR Dr. Kagan Tumer for taking the time to review

  • Investigation of bipolar resistive switching in zinc-tin-oxide for resistive random access memory

    Creator:
    Murali, Santosh
    Abstract:
    Resistive random access memory (RRAM) is a non-volatile memory technology based on resistive switching in a dielectric or semiconductor sandwiched between two different metals. Also known as memristors, these devices are potential candidates for a next-generation replacement for flash memory. In this thesis, bipolar resistive switching is reported for the...
    Resource Type:
    Masters Thesis
    Full Text:
    . ............................................... 93 Figure 74: ln (I/V) vs. V ½ graph for P-F emission

  • Timing jitter and phase noise in electronic oscillators

    Creator:
    Zhang, Chengwei
    Abstract:
    In the first part of this dissertation, low frequency l/f or flicker noise in the frequency range of Hz to kHz has been identified and demonstrated to be described by temperature fluctuations in heat conduction in bipolar transistors operated at higher power densities. This noise phenomenon is not described by...
    Resource Type:
    Dissertation
    Full Text:
    Settaluri, Professor Molly Shor, Professor Thomas G. Dietterich for spending their valuable time as my

  • A fast-settling folded-cascode CMOS operational amplifier

    Creator:
    Abu-Dayeh, Mahmoud A.
    Abstract:
    A fast-settling CMOS operational amplifier using the folded-cascode topology has been designed. The design is based on a theory developed by Yang et al for the optimum settling time of two-pole systems for switched-capacitor applications. The theory states that the two poles are separated by a given factor in order...
    Resource Type:
    Masters Thesis
    Full Text:
    . David Allstot, Dr. Thomas Plant, Dr. Sayfe Kiaei and Dr. Robert Stalley. Special appreciation to Dr

  • Design of GaAs monolithically integrated optical receiver amplifier

    Creator:
    Ju, Shu-ing
    Resource Type:
    Masters Thesis
    Full Text:
    . Thomas K. Plant for consenting to be on her committee and receiving her thesis. I am pleased to

  • Design of a low jitter digital PLL with low input frequency

    Creator:
    Jung, Seokmin
    Abstract:
    Complex digital circuits such as microprocessors typically require support circuitry that has traditionally been realized using analog or mixed-signal macros. PLL circuits are used in many integrated applications such as frequency synthesizers and inter-chip communication interfaces. As process technologies advance and grow in complexity, the challenge of maintaining required analog...
    Resource Type:
    Masters Thesis
    Full Text:
    filter to phase (ΦP). The stability of this loop can be guaranteed by ensuring the output phase change

  • Feedforward noise cancellation techniques

    Creator:
    Yang, Bangda
    Abstract:
    Supply noise is one of the major considerations in almost all analog building blocks. In the past, adequate supply rejection is usually achieved with circuit isolation or excess capacitive coupling. However, this brute force method requires large silicon area and degrades feedback bandwidth. In this study, a method of enhancing...
    Resource Type:
    Masters Thesis
    Full Text:
    the LDO, (1 / )(1 / ) a o a A A LG s s s     0 P( || ) is the DC gain of M , is the

  • ACTFEL phosphor deposition by RF sputtering

    Creator:
    Ang, Wie Ming
    Resource Type:
    Masters Thesis
    Full Text:
    - Dp = Q = F. Fp (7) where subscripts i and p refer to the insulator and the phosphor, and e is the

  • Hybrid AOA and TDOA Solution for Transmitter Positioning

    Creator:
    Ahmed, Sarah A.
    Abstract:
    Accurate positioning has become an active research area in recent years. It has a wide range of applications in many fields such as navigation, asset tracking, health care, proximity marketing/location-based advertising, and sport analytics. Transmitter positioning via radio frequency (RF) signals is the most widely encountered scenario, and it uses...
    Resource Type:
    Masters Thesis

  • A digital multiplying delay locked loop for high frequency clock generation

    Creator:
    Uttarwar, Tushar
    Abstract:
    As Moore’s Law continues to give rise to ever shrinking channel lengths, circuits are becoming more digital and ever increasingly faster. Generating high frequency clocks in such scaled processes is becoming a tough challenge. Digital phase locked loops (DPLLs) are being explored as an alternative to conventional analog PLLs but...
    Resource Type:
    Masters Thesis
    Full Text:
    Conference, pp. 243-246, Sep. 2009. [5] G. Chien and P. Gray, “A 900-MHz local oscillator using a DLL

  • A text display node for a control oriented local area network

    Creator:
    Ji, De
    Abstract:
    In recent years, integrated circuit technology has spawned the development of many low cost and high performance microprocessors and microcontrollers. With these devices, there is an increasing interest in the implementation of distributed control networks, utilizing microprocessors in the control nodes. In this work, a low-cost liquid crystal display (LCD)...
    Resource Type:
    Masters Thesis
    Full Text:
    has been invaluable. My minor professor T. Darrah Thomas deserves special recognition for his

  • Contact resistance and stability assessment of oxide-based thin film transistors

    Creator:
    Hung, Celia M.
    Abstract:
    This thesis focuses on two aspects of oxide-based thin-film transistors (TFTs), contact resistance and instability assessment. First, determination of the contact resistance of indium tin oxide (ITO) on two wide-band gap semiconductors, zinc oxide (ZnO) and indium gallium oxide (IGO), is attempted and the effects of contact resistance on device...
    Resource Type:
    Masters Thesis

  • Development of acoustic transducers for use in the parametric pumping of spin waves

    Creator:
    Gross, Jonah M.
    Abstract:
    The work detailed here is the development of simulations and fabrication techniques used for the construction of thin-film acoustic transducers for use in the parametric pumping of spin waves. The Mason Model, a 1-D equivalent circuit simulating the responses of multilayer acoustic transducers, is implemented using ABCD-parameters in MATLAB to...
    Resource Type:
    Masters Thesis

  • New configurations of bandpass filters in single and multilayer environment

    Creator:
    Gururajan, Kala
    Abstract:
    Mobile and telecommunication industry has experienced tremendous growth in the recent past. Miniaturization and increased functionality have become necessary for all passive components in the system. Bandpass filters are critical passive components in any communication system and the existing designs in the crucial 1-10 GHz bandwidth suffer many drawbacks. For...
    Resource Type:
    Masters Thesis
    Full Text:
    my heartfelt appreciation to my other committee members Dr. Thomas K. Plant and Dr. Joseph W. Nibler

  • Physical vapor deposition of novel thin-film solar absorbers

    Creator:
    Waters, Benjamin E.
    Abstract:
    Current leading thin-film solar cell technologies, i.e., cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS), employ elements which are either toxic (Cd), or rare and/or expensive (In, Te, Ga, and Cd). The aim of this thesis is to investigate new, abundant, non-toxic p-type semiconductors for potential solar absorber application....
    Resource Type:
    Masters Thesis
    Full Text:
    ). The aim of this thesis is to investigate new, abundant, non-toxic p-type semiconductors for potential

  • A study of deep levels of AlGaAs/GaAs heterojunction bipolar transistors

    Creator:
    Huang, Chun-ta
    Abstract:
    A study of deep levels of the emitter region of a heterojunction bipolar transistor is investigated using deep level transient spectroscopy (DLTS), deep level admittance spectroscopy (DLAS), thermally stimulated capacitance (TSCAP), and capacitance-voltage (C-V) profiling. The DX center, with an activation energy of 0.45 eV, is the only deep level...
    Resource Type:
    Masters Thesis
    Full Text:
    . Finally, the reduction of current gain (p) at low collector current and the effect of the DX center on

  • Cryptanalysis and enhancement of authentication protocols

    Creator:
    Kim, Minho
    Abstract:
    Authentication protocols play important roles in network security. A variety of authentication protocols ranging from complex public-key cryptosystems to simple password-based authentication schemes have been proposed. However, currently there is no fully secure authentication scheme that can resist all known attacks. When a user authentication is performed over an insecure...
    Resource Type:
    Dissertation
    Full Text:
    teaching. I also want to extend great appreciation to Professor Zhongfeng Wang, Traylor Roger, Thomas

  • Plasma-Jet Printing and In Situ Sintering of Electronic Materials for Flexible Hybrid Electronic Applications

    Creator:
    Manzi, Jacob
    Abstract:
    Additive manufacturing has become a promising method for the fabrication of inexpensive, green, flexible sensors and electronics. Printed electronics on low- temperature substrates are very appealing for the flexible hybrid electronics market for their use in disposable and biocompatible electronic applications and in areas like packaging, wearables, and consumer electronics....
    Resource Type:
    Dissertation

  • Feedback in multiple antenna wireless communication systems

    Creator:
    Xu, Tao
    Abstract:
    Multiple-input multiple-output wireless systems promise significant capacity gain and/or diversity gain over single antenna systems. If channel state information (CSI) is available at both the transmitter and the receiver, the performance can be further improved. In this thesis, first, we study binary index feedback problem in beamforming systems when the...
    Resource Type:
    Dissertation
    Full Text:
    Professor Bechir Hamdaoui, Professor Mario E. Magaña, Professor Raviv Raich, and Professor Thomas A

  • A novel method for zinc oxide nanowire sensor fabrication

    Creator:
    Pelatt, Brian D.
    Abstract:
    Interest in nanomaterials is motivated partly by their potential for sensor arrays to detect different gases. Nanowires in particular are of interest because their high surface-to-volume ratio promises the possibility of high sensitivity. However, because of their discrete quasi-one-dimensional geometry, electrical integration of nanowires into photolithographically defined devices and circuits...
    Resource Type:
    Masters Thesis
    Full Text:
    a conductor and has a significant use as improving Ohmic contacts to ZnO. p-type doping in ZnO is

  • Magnetic bead detection with ferromagnetic resonance for use in immuno-biosensor application

    Creator:
    Ghionea, Simon
    Abstract:
    The objective of this thesis is to introduce and demonstrate a novel magnetic bead detector based on inductive detection at the ferromagnetic resonance (FMR) frequency for use in bio-sensing applications. Detection ability is demonstrated through theoretical arguments, numerical computer simulations, and experimental characterization of micro-fabricated detectors. The detector is composed...
    Resource Type:
    Masters Thesis

  • Effects of ultraviolet illumination and a parylene-A activation layer on the gas phase sensing characteristics of ZnO nanobridges

    Creator:
    Mason, Ashley D.
    Abstract:
    ZnO nanowires (NWs) are good candidates for chemical sensing because of their high surface-to-volume ratio. In this work, ZnO nanobridge sensors were fabricated utilizing a novel method which uses carbonized photoresist (C-PR) as a nucleation layer. The use of C-PR allows simultaneous growth and integration of NWs to lithographically-defined features....
    Resource Type:
    Masters Thesis

  • Atomic Layer Deposition of Multi-Insulator Metal-Insulator-Metal Capacitors

    Creator:
    Austin, Dustin Z.
    Abstract:
    Back end of line (BEOL) metal-insulator-metal capacitors (MIMCAPs) have become a core passive component in modern integrated circuits. International Technology Roadmap for Semiconductors (ITRS) projections for scaling of analog/mixed-signal MIMCAP applications require simultaneously increasing capacitance density while maintaining low leakage current density and low voltage nonlinearity (characterized by the quadratic...
    Resource Type:
    Dissertation
    Full Text:
    A. Farcy, J.-F. Carpentier, M. Thomas, J. Torres, and P. Ancey, Microelectron. Eng. 85, 1940 (2008

  • Quasi-TEM and full wave numerical methods for the characterization on microstrip discontinuities

    Creator:
    Hill, Achim
    Abstract:
    Static and dynamic numerical techniques which are suited for the analysis and simulation of various planar microstrip components encountered in hybrid and monolithic microwave integrated circuits are presented. The static analysis makes use of an excess source formulation in conjunction with an efficient mathematical treatment to extract the discontinuity parameter...
    Resource Type:
    Dissertation
    Full Text:
    Davis, Dr. Stephen Goodnick, Dr. Thomas Plant, Donald Amort and Dr. Toshimi Minoura are acknowledged

  • Integration of vapor-solid grown ZnO nanowires through dielectrophoresis

    Creator:
    Ng, Vi-Vie
    Abstract:
    Work on individually constructed devices has demonstrated that nanowires (NWs) offer great promise for applications such as sensing and optoelectronics. Despite this work, reliable large scale alignment and integration of these individual nanostructures into a lithographically defined process remains a challenge. Dielectrophoresis (DEP) is a promising alignment method in which...
    Resource Type:
    Masters Thesis
    Full Text:
    permittivity of the nanowire(medium), and can be written as ε = εp x εo, where εp and εo are the relative

  • Sustainable power management of microelectronics

    Creator:
    Muhtaroglu, Ali
    Abstract:
    The integration of renewable energy sources and the associated power electronics to notebook power and thermal management systems was investigated in this work. Both thermoelectric (TE) and photovoltaic (PV) energy extraction techniques were explored with the goal of achieving best sustainability. Semi-realistic usage assumptions were taken into account to evaluate...
    Resource Type:
    Dissertation
    Full Text:
    , Dr. Alan Wallace, Dr. Deborah Pence, Dr. Thomas Plant, Dr. Ted Brekken, and Dr. Hackleman, for

  • Nontraditional amorphous oxide semiconductor thin-film transistor fabrication

    Creator:
    Sundholm, Eric Steven
    Abstract:
    Fabrication techniques and process integration considerations for amorphous oxide semiconductor (AOS) thin-film transistors (TFTs) constitute the central theme of this dissertation. Within this theme three primary areas of focus are pursued. The first focus involves formulating a general framework for assessing passivation. Avoiding formation of an undesirable backside accumulation layer...
    Resource Type:
    Dissertation

  • Electronic device and nanolaminate application of amorphous metal thin films

    Creator:
    Cowell, E. William, III
    Abstract:
    The objective of this dissertation is to develop amorphous metal thin films (AMTFs) for two-terminal electrical device and nanolaminate applications. Two AMTFs, ZrCuAlNi and TiAl, are investigated in both two-terminal electrical device and nanolaminate applications. Material properties including composition, atomic order, surface morphology, surface potential, and electrical resistivity are explored....
    Resource Type:
    Dissertation

  • Novel power conditioning circuits for piezoelectric micro power generators

    Creator:
    Han, Jifeng
    Abstract:
    Advanced low power devices promote the development of micro power generators (MPGs) to replace the batteries to power them. Due to the trend in decreasing integrated circuit (IC) supply voltages, power supply designers are facing more and more serious challenges. The objective of this research is to design a power...
    Resource Type:
    Dissertation
    Full Text:
    Exposition (APEC). I would like to express my sincere appreciation to Dr. Thomas G. Dietterich

  • Modified VLSI designs for error correction codes

    Creator:
    Chen, Lupin
    Abstract:
    Nowadays, error correction codes have become an integral part in almost all the modern digital communication and storage systems. With the continuously increasing demands for higher speed and lower power communication systems, efficient VLSI implementations of those error correction codes have great importance for practical applications. In this thesis, several...
    Resource Type:
    Masters Thesis
    Full Text:
    presentations. I would like to thank Dr. Huaping Liu, Dr. Thomas K. Plant, and Dr. James A. Coakley, Jr. for

  • High-accuracy circuits for on-chip capacitor ratio testing and sensor readout

    Creator:
    Wang, Bo, 1970-
    Abstract:
    The precise measurement of a capacitance difference or ratio in a digital form is very important for capacitive sensors, for CMOS process characterization as well as for the realization of precise switched-capacitor data converters, amplifiers and other circuits utilizing ratioed capacitors. This thesis introduces design techniques for on-chip capacitor ratio...
    Resource Type:
    Dissertation
    Full Text:
    . Prof. Thomas. K. Plant and Prof. John T. Stonick for valuable comments and help. Thanks to Rita Wells

  • Al-In-Sn-O thin-film transistors

    Creator:
    Stewart, Kevin A.
    Abstract:
    The aim of the research undertaken for this thesis was to develop a new high-performance amorphous oxide semiconductor (AOS) for use as a channel layer in a thin-film transistor (TFT). AOS TFTs offer higher electron mobility than the established amorphous silicon based technology. A new channel material comprised of aluminum...
    Resource Type:
    Masters Thesis
    Full Text:
    . The MFP for air at room temperature can be approximated by, [5] 1 5.1 × 10−3(cm) M F P = ≈ . (3.1

  • Development of high efficiency solar absorbers

    Creator:
    Ravichandran, Ram
    Abstract:
    Current cadmium telluride and copper indium gallium diselenide thin-film solar cells (TFSCs) utilize thick absorbers (2 - 4 μm). For efficient carrier extraction in these TFSCs, the absorber layer requires high carrier mobilities and a long minority carrier lifetime, which necessitates the use of a high purity, defect-free thin film....
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Density of states trends for s-, p-, and d-orbital derived bands, specifying the maximum

  • Investigation of metal-insulator-metal (MIM) and nanolaminate barrier MIIM tunnel devices fabricated via atomic layer deposition

    Creator:
    Alimardani, Nasir
    Abstract:
    Metal-insulator-metal (MIM) tunnel devices have been proposed for high speed applications such as hot electron transistors, IR detectors, optical rectennas for IR energy harvesting, and backplanes for LCDs. The majority of these applications require highly asymmetric and non-linear current versus voltage (I-V) behavior at low applied voltages and ultra-high frequencies....
    Resource Type:
    Dissertation
    Full Text:
    ). ..........................................................................................................37 3.8 J vs. ξ p lo ts o f an Ir / ~1 0 n m Al2O3 / Al device taken at intervals during +3 MV

  • Analysis and modeling of electrically long MESFETS and coupled schottky lines

    Creator:
    Mohammed, Ahmed Sarhan
    Abstract:
    The properties of linear active coupled lines consisting of electrically long GaAs MESFET structures are investigated for possible applications as traveling-wave broad-band amplifiers. In addition, the nonlinear coupled Schottky lines are studied for applications as voltage tunable circuit elements. The analysis of the general active asymmetric coupled transmission lines in...
    Resource Type:
    Dissertation
    Full Text:
    . Alexander, Mr. Donald L. Amort, Dr. Sydney John T. Owen, Dr. Thomas K. Plant and Dr. Alan H. Robinson for

  • Transparent electronics : thin-film transistors and integrated circuits

    Creator:
    Presley, Rick E.
    Abstract:
    This thesis focuses on two aspects of transparent electronics, SnO₂ transparent thin-film transistors (TTFTs) and transparent circuits. Both depletion- and enhancement-mode SnO₂ TTFTs are realized. The maximum effective mobility for the depletion- and enhancement-mode devices are 2 cm²V⁻¹s⁻¹ and 0.8 cm²V⁻¹s⁻¹, respectively. A variety of techniques to decrease the carrier...
    Resource Type:
    Masters Thesis
    Full Text:
    I2 V3 I3 T1 T2 T3 T4 T5 T6 t=0 V1 = 0 I1 = small t=τp V2 = high I2 = large t=2τ

  • Design of a mini-computer controlled digital integrated circuit tester

    Creator:
    Fasang, Patrick Pad, 1941-
    Abstract:
    The purpose of the thesis is to design, construct, program, and test an automatic integrated circuit test system. The class of integrated circuits tested was restricted to digital integrated circuits. The general concept of testing a digital integrated circuit is based on the truth table of that circuit. A combination...
    Resource Type:
    Dissertation
    Full Text:
    the doctoral committee - Dr. Harry E. Goheen, Dr. Roderick S. Mesecar, Dr. David R. Thomas, and Dr

  • Analysis and modeling of GaAs MESFET's for linear integrated circuit design

    Creator:
    Lee, Mankoo
    Abstract:
    A complete Gallium Arsenide Metal Semiconconductor Field Effect Transistor (GaAs MESFET) model including deep-level trap effects has been developed, which is far more accurate than previous equivalent circuit models, for high-speed applications in linear integrated circuit design. A new self-backgating GaAs MESFET model, which can simulate low frequency anomalies, is...
    Resource Type:
    Dissertation
    Full Text:
    Ph.D. Committee: Dr. James A. Van Vechten, Dr. Thomas K. Plant, Dr. Toshimi Minoura, and, especially

  • Analysis and applications of layered multiconductor coupled slot and strip-slot structures

    Creator:
    Luo, Sifen
    Abstract:
    Layered multiconductor coupled slot and strip-slot structures are characterized by introducing the full-wave modal analysis as well as the quasi-TEM spectral domain technique. In the modal analysis, the electric and magnetic fields are constructed in terms of modal fields in different regions. Application of the boundary conditions at interfaces for...
    Resource Type:
    Dissertation
    Full Text:
    Thomas K. Plant for serving on my graduate committee and reviewing the manuscript. I owe special thanks

  • Design of a 1.8-V 14-bit [delta] - [sigma] A/D converter with 8X oversampling and 4 MHz Nyquist output rate

    Creator:
    Jiang, Ruoxin
    Abstract:
    In this dissertation, a new Δ∑ A/D converter is presented that is ideally suited for communication applications. It is based on a single-loop single-stage structure, which can realize a high maximum out-of-band quantization noise gain while maintaining stable operation and thus achieve 14-bit resolution at 8 times oversampling. A fifth-order...
    Resource Type:
    Dissertation
    Full Text:
    wants to express thanks to SRC. I also wants to express my appreciation to Dr. Solomon Yim, Dr. Thomas

  • Analysis and applications of multiple coupled line structures in an inhomogeneous medium

    Creator:
    Chin, Youn Kang
    Abstract:
    The general expressions for finding the network functions, e.g., the immittance and the scattering parameters, of a general, uniformly coupled n-line structure in an inhomogeneous medium are derived in terms of the normal mode parameters of the system. These are used to compute or to derive the explicit expressions for...
    Resource Type:
    Dissertation
    Full Text:
    , Thomas K. Plant, and Dale E. Kirk for serving on his graduate comittee and reviewing the manuscript

  • Improved design techniques for analog and mixed circuits

    Creator:
    Nishida, Yoshio
    Abstract:
    Although the digital revolution can realize many of past analog components in the digital forms, our world is surrounded with analog signals such as voice, temperature, etc. The bridge between these two worlds is one of key performance limitations among overall systems and it includes analog filters and data converters....
    Resource Type:
    Dissertation
    Full Text:
    newly proposed correlated double sampling technique compensates the gain error of a high-Q Tow-Thomas

  • Design of a variable gain, high linearity, low power baseband filter for WLAN transmitters

    Creator:
    Ranganathan, Sachin
    Abstract:
    A variable gain, high linearity, low power baseband filter for WLAN applications is implemented in a 1.5 V 3 V 0.15 μm CMOS process. This fourth-order low-pass filter, which is introduced in the transmit channel as a reconstruction filter between the D/A converter and the mixer, has a measured cut-off...
    Resource Type:
    Masters Thesis
    Full Text:
    and area compared to the Tow- Thomas or other architectures [13] [16] [17]. 3.1.3. Filter

  • A substrate noise coupling model for lightly doped CMOS processes

    Creator:
    Sadate, Aline C.
    Abstract:
    This thesis presents a design-oriented model for lightly doped CMOS substrates. The model predicts the substrate noise coupling between noisy digital and sensitive analog blocks in the early stages of the design. The model scales with the size and separation of these blocks and it is validated with device simulations...
    Resource Type:
    Masters Thesis
    Full Text:
    simulations and it is shown that P+ guard rings offer the best isolation, supppress- ing the noise by as much

  • Surface recombination velocity and bulk lifetime in GaAs and InP

    Creator:
    Rastegar, Bahador
    Abstract:
    An analytical expression is derived which allows the bulk minority carrier recombination lifetime, t, and the surface recombination velocity, S, to be extracted from a single noncontact photoconductivity decay (PCD) measurement. This analytical expression is rather complex, but can be reduced to a first order approximation. The first order approximation...
    Resource Type:
    Masters Thesis
    Full Text:
    ] Thomas P. Pearsall, "Gan.47In0.53As: A Ternary Semiconductor for Photodetectors Applications," IEEE