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Filtering by: Creator McMorran, Jeff P. Remove constraint Creator: McMorran, Jeff P. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • An efficient frequency controlled PFM for DC-DC converters

    Creator:
    Pai, Jeff
    Abstract:
    As more features are being integrated into mobile platforms, the demand for long battery life during standby mode has been increasing. Light load efficiency becomes one of essential features in today's DC-DC converter. The most effective method to improve light load efficiency is to operate the DC-DC converter under pulse-frequency-modulation...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Jeff Pai for the degree of Master of Science in Electrical and

  • A comparison of two types of zero-crossing FM demodulators for wireless receivers

    Creator:
    McNeal, Jeff D.
    Abstract:
    A comparison of two novel demodulators. The first is a basic zero crossing demodulator, as introduced by Beards. The second is an approach proposed by Hovin. The two demodulators are compared to each other and to the conventional method of demodulation.
    Resource Type:
    Masters Thesis
    Full Text:
    for wireless receivers AN ABSTRACT OF THE THESIS OF Jeff D. McNeal for the degree of Masters of

  • SPICE modeling of ACTFEL devices and OLEDs

    Creator:
    Bender, Jeffrey P.
    Abstract:
    The achievements of this thesis are the development of several models for the SPICE (Simulation Program with Integrated Circuit Emphasis) simulation of alternating-current thin-film electroluminescent (ACTFEL) devices, organic light-emitting devices (OLEDs), and polymer light-emitting devices (PLEDs). First, an ACTFEL model based on the built-in HSPICE Fowler-Nordheim tunneling diode is developed,...
    Resource Type:
    Masters Thesis
    Full Text:
    THE THESIS OF Jeffrey P. Bender for the degree of Master of Science in Electrical & Computer

  • 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:
    like to thank my committee members, Dr. Jeff Frolik, Dr. Andreas Weisshaar, Dr. Matthew Johnston, and

  • ACTFEL device simulation with impact ionization using a two-sheet charge model

    Creator:
    Bouchard, Anthony F.
    Abstract:
    The main achievement of this thesis is the development of a two-sheet charge simulation model with space charge creation by trap-to-band impact ionization to describe the electrical characteristics of alternating-current thin-film electroluminescent (ACTFEL) devices. The two-sheet charge model localizes all of the space charge in the phosphor region of an...
    Resource Type:
    Masters Thesis
    Full Text:
    . Thanks also to Beau Baukol, Arkady Grudzinsky, and Jeff Bender for their assistance. This work was

  • Novel structures for high-speed delta-sigma data converters

    Creator:
    Chae, Jeong Seok
    Abstract:
    As CMOS processes keep scaling down devices, the maximum operating frequencies of CMOS devices increase, and hence circuits can process very wide band signals. Moreover, the small physical dimensions of transistors allow the placing of many more blocks into a single chip, including highly accurate analog blocks and complicated digital...
    Resource Type:
    Dissertation
    Full Text:
    320 MHz sampling clock. The peak SNDR was 63 dB. The figure-of-merit FoM = P/(2*BW*2 ENOB) was

  • High efficiency wideband low-power delta-sigma modulators

    Creator:
    Lee, Sang Hyeon
    Abstract:
    Delta-sigma analog-to-digital converters traditionally have been used for low speed, high resolution applications such as measurements, sensors, voice and audio systems. Through continued device scaling in CMOS technology and architectural and circuit level design innovations, they have even become popular for wideband, high dynamic range applications such as wired and...
    Resource Type:
    Dissertation
    Full Text:
    of merit defined by FoM = P/(2 x BW x 2 ENOB ) is 0.27 pJ/conv-step. The measurement results

  • Acoustically Assisted Magnetic Recording

    Creator:
    Li, Weiyang
    Abstract:
    In the past few decades, magnetic recording has been used as a dominant solution for massive data storage due to its large capacity, excellent reliability and low cost. Nowadays, exponentially increasing user-generated information is creating a huge demand as well as great challenges for high density data storage solutions. For...
    Resource Type:
    Dissertation
    Full Text:
    Demagnetization factor NA Numerical aperture m P Power W q Charge of a free electron C t Substrate

  • 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:
    6 The PΦSS testbed [5]. . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7 The Droplet robot

  • A universal CMOS current-mode operational amplifier

    Creator:
    Botelho, Cindy
    Abstract:
    It has become customary in electrical engineering to think of signal processing in terms of voltage variables to the exclusion of current variables. This tendency has resulted in voltage signal processing circuits such as voltage-controlled voltage sources (VCVS) and voltage-mode operational amplifiers. However, the VCVS operational amplifier has several limitations...
    Resource Type:
    Masters Thesis
    Full Text:
    Wings" by Larry Henley and Jeff Silbar It must have been cold there in my shadow, to never have

  • Development of zinc tin oxide-based transparent thin-film transistors

    Creator:
    Chiang, Hai Q.
    Abstract:
    The focus of this thesis involves development of highly transparent, n-channel, accumulation- mode thin-film transistors employing a zinc tin oxide (ZTO) channel layer. ZTO-based transparent thin-film transistors (TTFTs) show improved device performance compared to ZnO-based TTFTs. An estimated peak effective mobility for these devices as high as ~100 cm² V⁻¹sec⁻¹...
    Resource Type:
    Masters Thesis
    Full Text:
    thesis through HP. Dr. Jeff Bender provided the "basic training" required to succeed in the solid state

  • Switch-capacitor Power Amplifier with Enhanced Power Back-off Efficiency and Linearity

    Creator:
    Qiao, Bo
    Abstract:
    Nowadays, wireless communication systems use high-order quadrature amplitude modulation (QAM) together with orthogonal frequency-division multiplexing (OFDM) to increase the link capacity and robustness. These signals always have large peak-to-average power ratio (PAPR) and require power amplifiers (PAs) achieve both high efficiency and linearity simultaneously. For the efficiency, the complementary metal...
    Resource Type:
    Dissertation
    Full Text:
    thank Prof. Jeffrey Walling for his great supports on my research. Jeff mentored me during my first

  • Quantitative Analysis of Illicit Drug Residues from Wastewater using Surface-enhanced Raman Scattering

    Creator:
    Zhang, Boxin
    Abstract:
    Detection of illicit drug residues from wastewater provides a new route toward community level assessment of drug abuse that is critical to public health. However, traditional chemistry analytical tools such as liquid chromatography in tandem with mass spectrometry cannot meet the large-scale testing requirement in terms of cost, throughput, and...
    Resource Type:
    Masters Thesis
    Full Text:
    organization. Dr. Jeff Morrer aided with the High-performance liquid chromatography in tandem with mass

  • Design techniques for low-power multi-GS/s analog-to-digital converters

    Creator:
    Jiang, Tao
    Abstract:
    Ultra-high-speed (>10GS/s), medium-resolution (5~6bit), low-power (<50mW) analog-to-digital converter can find it application in the areas of digital oscilloscopes and next-generation serial link receivers. There are several challenges to enable a successful design, however. First, the time-interleaved architecture is required in order to achieve over 10GS/s sampling rate, with the trade-off...
    Resource Type:
    Dissertation
    Full Text:
    , and Radu Fetche and Jeff Means of Rohde & Schwarz, for their generous donation of measurement

  • Modeling, Fabrication, and Characterization of Magnetic Thin Films for Integrated Inductor and MRAM Applications

    Creator:
    Buford, Benjamin
    Abstract:
    Magnetic thin films have potential to improve devices such as on-chip inductors, and enable new technologies such as magnetic random access memory (MRAM). The use of magnetic cores in on-chip inductors is typically limited to applications well under 1 GHz. At higher frequencies, the performance of the magnetic core is...
    Resource Type:
    Dissertation
    Full Text:
    currents can be used to sense the device resistance. MTJs with a perpendicular easy axis (p-MTJs) have

  • Design techniques for low power ADCs

    Creator:
    Yu, Wenhuan
    Abstract:
    This dissertation presents an incremental analog-to-digital converter (ADC) with digital digital-to-analog converter (DAC) mismatch correction. A theoretical time-domain analysis technique was developed to predict the noise performance of the incremental ADC, and a new optimization technique was proposed to minimize the output noise. In the calibration mode, the incremental ADC...
    Resource Type:
    Dissertation
    Full Text:
    Zhang and Zhiqing Zhang. I thank Kangming Hu, Tao Jiang, Changhui Hu, Jingguang Wang, Jeff Peng- Yuan

  • Process development and modeling of thin-film transistors

    Creator:
    Hong, David
    Abstract:
    A class of high-performance thin-film transistor (TFT) channel materials has emerged involving oxides composed of heavy-metal cations (HMCs) with (n-1)d¹⁰ns⁰ (n≥4) electronic configurations. This thesis is devoted to the pursuit of three topics involving the development of these materials for TFT applications: modeling TFT currentvoltage characteristics, an exploratory method for...
    Resource Type:
    Masters Thesis
    Full Text:
    and a great resource. Dr. Jeff Bender has provided invaluable dialogue and inspira- tion. To the

  • Analysis and design on low-power multi-Gb/s serial links

    Creator:
    Hu, Kangmin
    Abstract:
    High speed serial links are critical components for addressing the growing demand for I/O bandwidth in next-generation computing applications, such as many-core systems, backplane and optical data communications. Due to continued process scaling and circuit innovations, today's CMOS serial link transceivers can achieve tens of Gb/s per pin. However, most...
    Resource Type:
    Dissertation
    Full Text:
    Professor Gabor Temes’ group, Wenjing Yin, Jeff Pai, Rajesh Inti, Amr Elshazly, Bangda Yang and Sachin Rao

  • High-speed CMOS dual-modulus presalers for frequency synthesis

    Creator:
    Desikachari, Ranganathan
    Abstract:
    Phase-locked loop (PLL) frequency synthesizers lie at the heart of most radio transceivers. An important objective of the electronics and communications industry is to design high-speed building blocks which dissipate the lowest possible power, and to ac- complish this with the cheapest technology. The dual-modulus prescaler is one of the...
    Resource Type:
    Masters Thesis
    Full Text:
    project and for fab- ricating the chip. Jeff Huard and Bijoy Chatterjee were instrumental in encouraging

  • Ferroelectric thin film development

    Creator:
    Harman, Taran V.
    Abstract:
    The long-term goal of the research project initiated with this thesis is the development of lead-free, fully-transparent ferroelectric devices, such as ferroelectric capacitors or ferroelectric-gate field-effect transistors. Ferroelectric materials exhibit spontaneous polarization with the application of an external electric field, which is persistent upon removal of the applied field, and...
    Resource Type:
    Masters Thesis
    Full Text:
    . Jeff Bender for useful discussions about RF sputtering and the Sawyer-Tower circuit, and Dr. Ben

  • Risk and Uncertainty Quantification Methods in Electrical Power Systems

    Creator:
    Johnson, Brandon S.
    Abstract:
    Load flow studies are one of the most essential engineering applications for grid operators because they provide a clear picture of the operating conditions of the power system. Traditionally, the load flow problem is assumed to be deterministic; that is, the system variables contain no randomness. Unfortunately, this assumption is...
    Resource Type:
    Dissertation

  • Computational methods for the quasi-TEM characteristics of fundamental MIC planar structures

    Creator:
    Lee, Hyuckjae
    Abstract:
    Accurate and efficient computational methods to evaluate the quasi-TEM parameters of various planar structures such as microstrips, coplanar lines and coplanar waveguides are developed. The characteristic parameters of all these structures which are used extensively in microwave integrated circuits for applications as transmission lines and other circuit elements are computed...
    Resource Type:
    Dissertation
    Full Text:
    separated by slots from two adjacent semi-infinite ground planes, a ) Micro s t r i p l i n e c ) C o

  • 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:
    Khan, Amr Elshazly, Nima Maghari, Jon Guerber, and Jeff Pai, for their numerous random discussions

  • Digitally assisted control techniques for high performance switching DC-DC converters

    Creator:
    Khan, Qadeer Ahmad
    Abstract:
    Digitally controlled switching DC-DC converters have recently emerged as an attractive alternative to conventional switching converters based on analog control techniques. This research focuses on eliminating the issues associated with the state of the art switching converters by proposing three novel control techniques: (1) a digitally controlled Buck-Boost converter uses...
    Resource Type:
    Dissertation
    Full Text:
    Inti, Seokmin Jung, Mrunmay Talegaonkar, Karthikeyan Reddy , Tushar Uttarwar, Jeff Pai, Sarvesh Bang

  • Micropower incremental analog-to-digital converters

    Creator:
    Chen, Chia-Hung
    Abstract:
    Incremental ADCs (IADCs) have many advantages for low-frequency high-accuracy data conversion—they are easy to multiplex between channels, need simpler digital decimation filter, and allow extended counting with a Nyquist-rate ADC. A single-loop incremental ADC was designed and fabricated in 90 nm for a biosensor interface circuit. It incorporates one integrator,...
    Resource Type:
    Dissertation
    Full Text:
    : Jeff Pai, Hurst, Kuo, Kangmin Hu, Yue Hu, Lingli Xia, Youngho Jung, Tao Jiang, Jingzou Cao, SangHyeon

  • Low-power double-sampled delta-sigma modulator for broadband applications

    Creator:
    Shen, Weilun
    Abstract:
    High speed and high resolution analog-to-digital converter is a key building block for broadband wireless communications, high definition video applications, medical images and so on. By leveraging the down scaling of the latest CMOS technology and the noise shaping properties, delta-sigma (ΔΣ) ADCs are able to achieve wide-band operation and...
    Resource Type:
    Dissertation
    Full Text:
    , Tao Wang, Jiamin Lin, Ronghua Ni, Jinzhou Cao, Jeff Pai, Hurst Kuo, Jeong Seok Chae, Kyehyung Lee

  • Fabrication and characterization of thin-film transistor materials and devices

    Creator:
    Hong, David
    Abstract:
    A class of inorganic thin-film transistor (TFT) semiconductor materials has emerged involving oxides composed of post-transitional cations with (n-1)d¹⁰ns⁰ (n≥4) electronic configurations. This thesis is devoted to the pursuit of topics involving the development of these materials for TFT applications: Deposition of zinc oxide and zinc tin oxide semiconductor layers...
    Resource Type:
    Dissertation
    Full Text:
    . Several key people are Dr. Hai Chiang and Dr. Jeff Bender, who have been great resources for

  • Investigating Time-Digital-Converters for Hardware Security in FPGAs

    Creator:
    Lytikov, Daniil
    Abstract:
    In this comprehensive thesis, we present a series of experiments and findings that highlight the critical importance of TDC Voltage Sensors in the hardware security domain. Our research begins by introducing a novel self-calibrating module, demonstrating its efficiency through preliminary calibration tests. We then delve into the Peak-to-Peak tests, which...
    Resource Type:
    Masters Thesis

  • Simulation and modeling of substrate noise generation from synchronous and asynchronous digital logic circuits

    Creator:
    Hanken, Christopher
    Abstract:
    Efficient methods for simulating the substrate noise generated by complex synchronous and asynchronous digital logic circuits are presented. By simulating digital logic at the gate level, and precharacterizing the gates, the substrate noise generation can be predicted and used in a transistor level simulation of the sensitive analog blocks. This...
    Resource Type:
    Masters Thesis
    Full Text:
    Logic, in particular Mike Hagedorn and Jeff Wilson. I have had the honor of coming to know a multitude

  • Design methodology for low-jitter phase-locked loops

    Creator:
    Bhagavatheeswaran, Shanthi, S.
    Abstract:
    This thesis presents a systematic top-down methodology for simulating a phase-locked loop using a macro model in Verilog-A. The macromodel has been used to evaluate the jitter due to supply noise, thermal noise, and ground bounce. The noise simulation with the behavioral model is roughly 310 times faster (best case)...
    Resource Type:
    Masters Thesis
    Full Text:
    engineers while be- ing an intern at Motorola Inc. 1 am most thankful to my mentor and supervisor Jeff

  • Low-power high-resolution delta-sigma ADC design techniques

    Creator:
    Wang, Tao
    Abstract:
    This dissertation presents a low-power high-resolution delta-sigma ADC. Two new architectural design techniques are proposed to reduce the power dissipation of the ADC. Compared to the conventional active adder, the direct charge transfer (DCT) adder greatly saves power by keeping the feedback factor of the active adder unity. However, the...
    Resource Type:
    Dissertation
    Full Text:
    , Ronghua Ni, Taehwan Oh, Jeff Peng-Yuan Pai, Saeed Pourbagheri, Omid Rajaee, Sachin Rao, Weilun Shen

  • Design of low power 2.4GHz CMOS LC balanced oscillators with low phase noise and large tuning range

    Creator:
    Seshan, Nilakantan
    Abstract:
    The design of two 2.4GHz CMOS LC balanced oscillators in the 0.25μm National BiCMOS process for Bluetooth specifications is presented. These oscillators achieve low phase noise with low power consumption. At a frequency offset of 500KHz from the 2.11GHz carrier, the measured phase noise is -101.9dBc/Hz for the NMOS oscillator...
    Resource Type:
    Masters Thesis
    Full Text:
    the efforts of Bijoy Chatterjee, Jeff Huard, Mike Schwartz, Mike Leister and Peter Welty of National

  • Design techniques for high-performance digital PLLs and CDRs

    Creator:
    Yin, Wenjing
    Abstract:
    Phase-Locked Loops (PLLs) are essential building blocks in many communication systems. Designing high performance analog PLLs in the presence of technology imposed constraints such as leakage, poor analog transistor behavior, process variability, and low supply voltage is a challenging task. To overcome these drawbacks, digital PLLs (DPLLs) have recently emerged...
    Resource Type:
    Dissertation

  • Experimental verification of a mismatch-shaping DAC

    Creator:
    Hudson, William Forrest, 1971-
    Abstract:
    Delta-sigma data converters have gained popularity in both analog-to-digital and digital-to-analog converters (ADCs and DACs) due to their simplicity, high linearity and immunity to many analog circuit imperfections. These data converters include features such as oversampling, noise-shaping, and (historically) single-bit quantization. Single-bit converters are preferred for their inherent linearity. This...
    Resource Type:
    Masters Thesis
    Full Text:
    downloading, and Jeff Stone for help with computer graphics. I'd like to thank a few of my friends, lab

  • Analysis and modeling of planar microstrip spiral inductors on lossy substrates

    Creator:
    Lutz, Richard D.
    Abstract:
    The advent of low-cost RFIC's fabricated in Silicon-based technologies has led to the use of monolithic lumped elements which are located on-die. While it is clearly advantageous to have a high degree of integration and thus fewer off chip elements, parasitic losses due to semiconducting substrate effects can be a...
    Resource Type:
    Masters Thesis
    Full Text:
    Tripathi, Ed Godshalk, Dr. Maynard Fal- coner, Jeff Williams, Kate Rem ley, and Yeon-Chang Hahm for their

  • Wideband and high accuracy delta sigma modulation data converter

    Creator:
    Jung, Youngho
    Abstract:
    Nowadays, needs for wideband and high accuracy analog-to-digital converter are increasing rapidly in manifold applications such as wireless communication, digital video and other consumer electronics. Besides, low power consumption is required to have longer battery life in portable systems. CMOS technology scaling and innovative modulator topology make the implementation much...
    Resource Type:
    Dissertation
    Full Text:
    mixed-signal group of OSU, Jeff Pai, Brian Young, Sachin Rao, Hari Prasath Venkatram, Yue (Simon) Hu

  • 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

  • Performance enhancement techniques for low power digital phase locked loops

    Creator:
    Elshazly, Amr
    Abstract:
    Desire for low-power, high performance computing has been at core of the symbiotic union between digital circuits and CMOS scaling. While digital circuit performance improves with device scaling, analog circuits have not gained these benefits. As a result, it has become necessary to leverage increased digital circuit performance to mitigate...
    Resource Type:
    Dissertation
    Full Text:
    , Murnmay Talegaonkar, Karthekyan Reddy, Sarvesh Bang, Bangda Yang, Brian Drost, Jeff Pai, Tejasvi Anand

  • Mini-Data Acquisition System for Small-Scale Testing of Wave Energy Converters

    Creator:
    Dizon, Christian N.
    Abstract:
    Data acquisition (DAQ) systems are a necessary component for products whose outcomes depend on collected information throughout its operation. Current systems are directed towards users utilizing custom hardware, software, and requiring its user to have high-level skills in coding and system setup; but with the increasing interest in renewable energy,...
    Resource Type:
    Masters Thesis

  • Channel Estimation in TDD MU-MIMO Systems using Sub-Linear Sparse Signal Recovery Algorithms

    Creator:
    Barry, David G.
    Abstract:
    Massive Multiple-User Miltiple-Input Multiple-Output (MU-MIMO) wireless communication systems incorporate promising advanced strong technologies for upcoming 5G communications. To obtain some of the high spectrum and energy e ciencies bonuses brought by MU-MIMO systems, the ability to obtain Channel State information, especially on the receiver side (CSI), is important. To minimize...
    Resource Type:
    Masters Thesis
    Full Text:
    parents, Jeff and Bobbi Barry have been constant supporters of my endeavors into the Electrical

  • Development of oxide semiconductors : materials, devices, and integration

    Creator:
    Chiang, Hai Q.
    Abstract:
    The aim of this dissertation is to develop oxide semiconductors by radio-frequency sputtering for thin-film transistor (TFT) applications. A variety of oxide semiconductors are used as the TFT channel layer, including indium gallium oxide (IGO), zinc tin oxide (ZTO), and indium gallium zinc oxide (IGZO). The variety of materials used...
    Resource Type:
    Dissertation
    Full Text:
    experiments during their lab training and helped characterize devices. Dr. Jeff Bender provided the training

  • Design techniques for low power high speed successive approximation analog-to-digital converters

    Creator:
    Lin, Jiaming
    Abstract:
    This dissertation presents two high-speed pipeline successive approximation analog-to-digital converters (SAR ADCs). Capacitive DACs and resistive DACs are utilized in these two pipeline SAR ADCs, respectively. The pipeline SAR ADC with capacitive DACs can save 50% switching power compared with other time-interleaved SAR ADCs since the total capacitance of the...
    Resource Type:
    Dissertation
    Full Text:
    Zhang, Hari Venkatram, Amr Elshazly, Jeff Pai and Sachin Rao). From all of these peers I have learned

  • A simulation and architectural study of TCP/IP

    Creator:
    Becker, Bridget A.
    Abstract:
    This paper discusses current network technologies and protocols and presents a simulation study of the most common networking protocol used today, TCP/IP. The TCP/IP protocol stack has many inherent problems that will be shown through this simulation study. Using the SimpleScalar Toolset, the significance of the data copying and checksumming...
    Resource Type:
    Masters Thesis
    Full Text:
    16 31 source port I destination port sequence number acknowledgment number u A p R ~ F ~ata

  • 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:
    , Jeff McNeal and many others. Thanks for many valuable discussions with them. I also like to

  • Direct torque control for brushless doubly-fed machines

    Creator:
    Brassfield, William R.
    Abstract:
    The Brushless Doubly-Fed Machine (BDFM) has recently become an important research topic in the field of variable-speed AC drives. In recent studies, the BDFM has shown significant potential for improving the reliability and performance of AC drive systems, as well as reducing total system cost. While the BDFM offers several...
    Resource Type:
    Masters Thesis
    Full Text:
    , David Goodwin, Mark Descalzo, Adam Lund, Jonathan Johnson, and our group leader, Jeff Harris. I also

  • Time-based noise-shaping techniques for time-to-digital and analog-to-digital converters

    Creator:
    Young, Brian LeRoy
    Abstract:
    In this dissertation, time-based signal processing techniques and their applications in oversampling and noise-shaping data converters are examined. These techniques demonstrate the ability to shift the burden of high performance analog circuits from the compressed voltage-domain to the augmented time-domain. First, the potential of high order noise-shaping and phase-domain feedback...
    Resource Type:
    Dissertation
    Full Text:
    express here. Thank you Ron Cheponis and Jeff Witt for suffering my ignorance and being always ready to

  • Oxide phosphors deposited by activated reactive evaporation for ACTFEL device applications

    Creator:
    Yokoyama, Tomoe
    Abstract:
    The goal of this thesis study is to develop an activated reactive evaporation (ARE) system and to demonstrate its utility by fabricating-alternating current thin-film electroluminescent (ACTFEL) oxide phosphor devices. ARE entails evaporation in an activated gas. The main ARE system components are three thermal evaporation sources, a microwave power supply,...
    Resource Type:
    Masters Thesis
    Full Text:
    from them will be always a part of me in my engineering career. I also thank Jeff Bender and Ben

  • A wideband low-power continuous-time delta-sigma modulator for next generation wireless applications

    Creator:
    Chen, Xuefeng
    Abstract:
    Delta-Sigma (ΔΣ) analog-to-digital converters (ADCs) are widely used in wireless transceivers. Recently, continuous-time (CT) ΔΣ ADCs gain growing interest in wireless applications for their lower power consumption and wider input bandwidth as compared with the discrete-time (DT) counterparts. In this thesis, a wideband low-power CT ΔΣ modulator for next generation...
    Resource Type:
    Dissertation
    Full Text:
    help with system-level design. I am thankful to Paul Ferguson, Jose Silva and Jeff Gealow for their

  • An n-sheet, state-space ACTFEL device model

    Creator:
    Hitt, John C.
    Abstract:
    The objective of the research presented in this thesis is to develop, implement, and demonstrate the utility of an n-sheet, state-space alternating-current thin-film electroluminescent (ACTFEL) device model. In this model, the phosphor layer is discretized into n + 1 layers, with band-to-band impact ionization, space charge creation/ annihilation, and luminescent...
    Resource Type:
    Dissertation
    Full Text:
    electroluminescence research group at Oregon State University. I would like to thank Robert Thuemler and Jeff Peery

  • Memory optimization for a parallel sorting hardware architecture

    Creator:
    Beyer, Dale A.
    Abstract:
    Sorting is one of the more computationally intensive tasks a computer performs. One of the most effective ways to speed up the task of sorting is by using parallel algorithms. When implementing a parallel algorithm, the designer has to make several decisions. Among the decisions are the algorithm and the...
    Resource Type:
    Masters Thesis
    Full Text:
    Redacted for Privacy Acknowledgements: I would like to thank my roommate Jeff McNeal who without his

  • Network monitoring with focus on HTTP

    Creator:
    Schmid, Andreas
    Abstract:
    Since its introduction in the early 1990s, the quick growth of the World Wide Web (WWW) traffic raises the question of whether past Local Area Network (LAN) packet traces still reflect the current situation or whether they have become obsolete. For this thesis, several LAN packet traces were obtained by...
    Resource Type:
    Masters Thesis

  • Growth, fabrication and modeling of pseudomorphic laser diodes

    Creator:
    Ebner, John
    Abstract:
    This thesis reports on the crystal growth, fabrication, modeling and performance of Graded Index-Separate Confinement Heterostructure laser diodes which contain pseudomorphic InGaAs as the active region material. Laser epitaxial layers were grown with different indium mole-fractions, and a constant InGaAs layer thickness of 10 nm, on both sides of the...
    Resource Type:
    Dissertation
    Full Text:
    Jeff Goll, of Textronix, is also gratefully acknowledged. My ability to complete this work was in

  • Secrecy of massive MIMO systems under antenna failure

    Creator:
    Assiri, Mohammad
    Abstract:
    As the fifth generation of mobile communication systems (5G) is being deployed, massive multiple-input multiple-output (MIMO) serves as one of its enabling technologies where reliable and ultra low latency communications are achieved while being power and spectrum efficient. This thesis studies the security aspect of massive MIMO system from the...
    Resource Type:
    Dissertation
    Full Text:
    transition probability P [Yb, Ye |X] and generates outputs Y𝑏 and Y𝑒. The wiretap channel is said to be

  • CMOS low noise amplifier design utilizing monolithic transformers

    Creator:
    Zhou, Jianjun J.
    Abstract:
    Full integration of CMOS low noise amplifiers (LNA) presents a challenge for low cost CMOS receiver systems. A critical problem faced in the design of an RF CMOS LNA is the inaccurate high-frequency noise model of the MOSFET implemented in circuit simulators such as SPICE. Silicon-based monolithic inductors are another...
    Resource Type:
    Dissertation
    Full Text:
    . Special thanks to Wenjun Su and his wife Wenjing Zhang, Rugang Ding and his wife Lian Song, Yun Ge, Jeff

  • Energy efficient communication across on-chip wires in digital CMOS

    Creator:
    Postman, Jacob
    Abstract:
    For the past half century, CMOS process scaling has followed Moore's law, approximately doubling transistor density every 18 months. While locally routed wires have generally scaled with transistor size, longer wires have scaled at a slower rate and in some cases have grown larger as chip size and complexity have...
    Resource Type:
    Dissertation
    Full Text:
    , Daniel Keese, Douglas Van Bossuyt, Jeff Teigler, Jennie Fairbrother, Joel Baker, Maeve Dempsey, Matt

  • 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:
    allowing us use the facility in his labs, and Jeff Bender for providing me with deionized (DI) water

  • An Anthology of Next-Generation WSNs and Transformative IoT Use-Cases

    Creator:
    Williams, Jennifer M.
    Abstract:
    The Internet of Things (IoT) paradigm brought an ever-increasing dependence on low-power devices to collect sensor data and transmit that information to the cloud, placing greater demand on connectivity and lifespan. In response, rapid worldwide innovation demonstrates the trade-offs in processing, communication, and energy consumption with diverse approaches to low-power...
    Resource Type:
    Dissertation
    Full Text:
    Christiansen, OSU EECS, National Science Foundation Graduate Re- search Fellowship Program (GRFP), Intel, Jeff

  • A microarchitecture study of the counterflow pipeline principle

    Creator:
    Janik, Kenneth J.
    Abstract:
    The counterflow pipeline concept was originated by Sproull et. al.[1] to demonstrate the concept of asynchronous circuits. The basic premise is that a simple architecture with only local communication and control and a simple regular structure will result in increased performance. This thesis attempts to analyze the performance of the...
    Resource Type:
    Dissertation
    Full Text:
    special thanks go to: Jeff Battles Yuichi Kishida Ryan Carlson Erik Landry Che-Jen Chang Mike Miller

  • Design techniques for wideband low-power Delta-Sigma analog-to-digital converters

    Creator:
    Wang, Yan
    Abstract:
    Delta-Sigma (ΔΣ) analog-to-digital converters (ADCs) are traditionally used in high quality audio systems, instrumentation and measurement (I&M) and biomedical devices. With the continued downscaling of CMOS technology, they are becoming popular in wideband applications such as wireless and wired communication systems,high-definition television and radar systems. There are two general realizations...
    Resource Type:
    Dissertation
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    tools. I appreciate the friendship with Jingguang Wang, Jeff Peng-Yuan Pai, Jian Huang, Jinjin He

  • Evolutionary Approach to Efficient Provisioning and Self-organization in Wireless Sensor Networks (WSN)

    Creator:
    Khanna, Rahul, 1966-
    Abstract:
    Advances in low-power digital integration and microelectro-mechanical systems (MEMS) have paved the way for micro-sensors. These sensors are equipped with data processing capabilities along with sensory circuits. Sensor data are processed on these individual sensors and transmitted to the target (sink). Lowcost integration and small sizes of these sensors have...
    Resource Type:
    Dissertation
    Full Text:
    ) using path 4 → 5 → 1 → P → B. Message response gets back on path B → 2 → 6 → 5 → 4. P is the proxy

  • A remotely controlled power quality test platform for characterizing the ride-through capabilities of adjustable speed drives

    Creator:
    Matheson, Evelyn
    Abstract:
    With the increased attention on high efficiency and controllability of industrial processes, as well as reduced weight, volume and cost of consumer products, the applications of nonlinear power electronic converters such as adjustable speed drives (ASDs) are showing a rapid rise. Power Quality (PQ) is becoming an increasing concern with...
    Resource Type:
    Masters Thesis

  • Location Privacy-Preserving Strategies for Secondary Spectrum Use

    Creator:
    Grissa, Mohamed
    Abstract:
    The scarcity of wireless spectrum resources and the overwhelming demand for wireless broadband resources have prompted industry, government agencies and academia within the wireless communities to develop and come up with effective solutions that can make additional spectrum available for broadband data. As part of these ongoing efforts, cognitive radio...
    Resource Type:
    Dissertation

  • Special associative preprocessing structures for qualitative feature extraction

    Creator:
    Bibby, Michael C.
    Abstract:
    Existing pattern recognition and classification algorithms in computer vision require vast amounts of computations on input data. As a result, memory access time is a critical parameter in system performance. Tremendous parallelism in structure and algorithm is required for the system to operate in real-time. A preprocessing structure for qualitative...
    Resource Type:
    Masters Thesis