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Filtering by: Creator Lumpkin, T. A. Remove constraint Creator: Lumpkin, T. A. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Current-feedthrough cancellation technique for current-mode T/H circuits

    Creator:
    Young, David Y. W.
    Abstract:
    In this paper, an analysis of the clock-feedthrough effects in switched-current (SI)' circuits will be presented. The clock-feedthrough effects caused by the non-ideal characteristic of MOS switches when they are turned off limit the accuracy of the analog track-and-hold (T/H) circuits. A model to analyze and characterize this effect is...
    Resource Type:
    Masters Thesis
    Full Text:
    when they are turned off limit the accuracy of the analog track-and-hold (T/H) circuits. A model to

  • Design and Implementation of a Wearable Walking Navigation Assistance System for the Vision Impaired

    Creator:
    Sylwester, Sean T.
    Abstract:
    Few navigation-assistance technologies for vision impaired individuals are practical due to inhibiting factors such as cost, comfort, convenience, and overall usefulness of the assistance. This thesis will present the design and implementation of a navigation assistance system intended to address these concerns. The presented system improves on existing technologies by...
    Resource Type:
    Honors College Thesis
    Full Text:
    Design and Implementation of a Wearable Walking

  • A direct-conversion offset-cancellation mixer in 2.4 GHz CMOS

    Creator:
    Lehne, Mark A.
    Abstract:
    We present a new circuit design for adaptive offset cancellation in a fully differential 2.4 GHz CMOS direct conversion mixer. Our circuit structure is a modification of a Gilbert cell mixer in which offsets are cancelled by injecting cancellation currents into the legs of the mixer by dynamically varying the...
    Resource Type:
    Masters Thesis
    Full Text:
    -Conversion Offset- Cancellation Mixer in 2.4GHz CMOS. Abstract approved: John T. Stonick We present a new

  • Accurate and efficient simulation of synchronous digital switching noise in system on a chip

    Creator:
    Habal, Husni
    Abstract:
    A new method is presented to compress switching information in large digital circuits. This is combined with an efficient approach of generating the noise signatures of cells in a digital library that results in an accurate and efficient approach for estimating the noise generated in digital circuits. This method provides...
    Resource Type:
    Masters Thesis
    Full Text:
    Efficient Simulation of Synchronous Digital Switching Noise in Systems on a Chip Abstract approved

  • 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:
    , longer wires have scaled at a slower rate and in some cases have grown larger as chip size and

  • Substrate noise coupling analysis in 0.18um silicon germanium (SiGe) and silicon on insulator (SOI) processes

    Creator:
    Pham, Hui En
    Abstract:
    Analysis of substrate noise coupling has been performed for a 0.18¹m lightly doped silicon germanium BiCMOS process. Techniques to minimize noise coupling in the chip and board design are presented, as well as methods for accurate modeling for substrate noise coupling simulations. Measurements from a test chip were taken to...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Terri Fiez Karti Mayaram Analysis of substrate noise coupling has been performed for a 0.18µm

  • Design of totally self-checking checker for t-unidirectional error detecting codes

    Creator:
    Malhotra, Sanjeev
    Abstract:
    The use of Totally Self-Checking Checkers in the design of highly reliable systems has significant advantages. It allows errors to be detected upon occurance without testing whether the error is caused by a permanent or an intermittent fault. The TSC circuit provides an error indication whenever the input is not...
    Resource Type:
    Masters Thesis
    Full Text:
    TOTALLY SELF-CHECKING CHECKER FOR t-UNIDIRECTIONAL ERROR DETECTING CODES by Sanjeev Malhotra A THESIS

  • A new correction algorithm for gain and phase imbalances in a homodyne receiver

    Creator:
    Vogel, Julia
    Abstract:
    The recent demand for wireless transceivers has created a flurry of research into nontraditional receiver architectures. The homodyne receiver, because of its high degree of integration, low complexity and low power consumption, has surfaced a desirable alternative to the well-known heterodyne receiver. However, distortions such as gain and phase imbalance...
    Resource Type:
    Masters Thesis
    Full Text:
    Correction Algorithm for Gain and Phase Imbalances in a Homodyne Receiver. Abstract approved. John T

  • A 2.4GHZ direct conversion mixer with offset cancellation

    Creator:
    Schmidbauer, Hardy
    Abstract:
    Dynamic DC offset is one of the biggest problems preventing the implementation of single chip receivers. This thesis presents a 2.4GHz downconversion mixer designed to work with adaptive DC offset cancellation for a fully integrated direct conversion receiver. Offset can be removed by dynamically changing the PFET load bias in...
    Resource Type:
    Masters Thesis
    Full Text:
    represented by a power series [1] [40]. V(t) = a1V(t)+a2V2(t)+a3V3(t) , V(t) = Acos(wt) (2.3) The third

  • The analysis and design of a broadband microwave buffer amplifier

    Creator:
    Dunsmore, Joel P.
    Abstract:
    In microwave network analysis, proper matching of the measurement system is necessary to prevent measurement errors and provide a proper terminating impedance for the device-under-test. To obtain this matching, a buffer amplifier is often used in the first stage of the network analyzer. This study describes the design and analysis...
    Resource Type:
    Masters Thesis
    Full Text:
    =(c/2.5)*t = (c/2.5)*(115 ps) = 1.38 cm This is a full wavelength at f= (c/2.5)/1 = 8.6 GHz which