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Filtering by: Creator Martin, Mark A. Remove constraint Creator: Martin, Mark A. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • 1/f noise of GaAs resistors on semi-insulating substrates, and 1/f noise due to temperature fluctuations in heat conduction

    Creator:
    Choi, Mun-Seork
    Abstract:
    This research work focuses on the mechanism of 1/f noise in GaAs resistors on semi-insulating substrates and 1/f noise due to temperature fluctuations in heat conduction in resistors, diodes, and bipolar transistors. The goal of this research is to generate accurate models to explain physical origin of 1/f noise in...
    Resource Type:
    Dissertation
    Full Text:
    based on a distributed equivalent circuit representation of the substrate, and shows that 1/f noise

  • 5th-Order Elliptic LPF Using Passive Charge Compensation Technique (PCC) Design

    Creator:
    Tsai, Cheng H.
    Abstract:
    The passive charge compensation (PCC) technique was introduced for switched capacitor (SC) circuit to increase the slew rate and enhance the linearity performance, as PCC techniques are used on the Delta-Sigma modulator (DSM) in ADC circuitry. The PCC technique of the project was applied to the design of a SC...
    Resource Type:
    Masters Thesis
    Full Text:
    was applied to the design of a SC filter to explore how PCC can relax the constraints in each of the

  • 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:
    A 2.4GHZ direct conversion mixer with offset cancellation

  • A comparative study of lowpass continuous-time delta-sigma modulators with pulse-shaped DACs

    Creator:
    Fang, Jie
    Abstract:
    Recently, continuous-time ΔΣ modulators are appearing increasingly often in both the literature and the marketplace due to their features of inherent antialiasing and relaxed requirements for opamp and so on. However, several nonideal factors such as clock jitter, excess loop delay, inter-symbol interference and so on, degrade the SNR performance...
    Resource Type:
    Masters Thesis
    Full Text:
    presented on September 23, 2005 . Title: A Comparative Study of Lowpass Continuous-Time ∆Σ Modulators with

  • A comparison of substrate noise coupling in heavily doped and lightly doped substrates for mixed-signal circuits

    Creator:
    Ayers, James S.
    Abstract:
    An analysis of substrate noise coupling in mixed-signal circuits has been performed in the TSMC 0.25 [mu]m lightly doped and heavily doped CMOS processes. Methods to minimize noise coupling in both the chip design and board design phases are presented along with techniques for accurate circuit simulation of noise coupling....
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Electrical and Computer Engineering presented on June 16, 2004. Title: A

  • A comparison of substrate noise coupling in lightly and heavily doped CMOS processes for 2.4 GHz LNA's

    Creator:
    Hazenboom, Duncan S.
    Abstract:
    Three types of low noise amplifiers operating at 2.4GHz were designed. They are the commonly used single-ended and differential amplifiers as well as a new quasi-differential amplifier. The substrate noise injected into these amplifiers is examined for both heavily and lightly doped CMOS substrates. For the single-ended amplifier the noise...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: A Comparison of Substrate Noise Coupling in Lightly and Heavily Doped CMOS Processes for 2.4GHz

  • 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:
    comparable SNR performance. A f = 5k, fc = 100k, f, = 5k 32 To Mark A COMPARISON OF TWO TYPES OF

  • A computer simulation model of land use dynamics in the State of Oregon

    Creator:
    Calligan, C. C.
    Abstract:
    The dynamics of land use in the State of Oregon are simulated on a digital computer. The introductory chapter outlines the complex nature of the problems facing the post-industrial society and argues that the scientific and professional estates share in the responsibility for public policy formulation. The second chapter .presents...
    Resource Type:
    Dissertation
    Full Text:
    A computer simulation model of land use dynamics in the

  • A continuous time frequency translating delta Sigma Modulator

    Creator:
    Pulincherry, Anurag
    Abstract:
    This thesis presents a continuous time bandpass delta sigma modulator with frequency translation inside the delta sigma loop. The input IF signal is down converted to baseband after amplification by a low Q, wideband bandpass resonator. The down converted IF signal is digitized by a continuous time, second order lowpass...
    Resource Type:
    Masters Thesis
    Full Text:
    : A Continuous Time Frequency Translating Delta Sigma Modulator. Abstract approved: Un-Moon This

  • 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:
    AN ABSTRACT OF THE THESIS OF Mark A. Lehne for the degree of