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  • 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:
    ABSTRACT OF THE THESIS OF Shanthi S. Bhagavatheeswaran for the degree of Master of Science in Electrical

  • Academic Discourse(s) and Practitioner Perspectives: Gendered Climate Adaptation Strategies for Water Resources

    Creator:
    Keith, Theresa L.
    Abstract:
    Research into the phenomenon of adaptation has surged in recent years as people across the globe face evolving climate situations. The role of women in this adaptation research, and in policy discussions, is often unclear or entirely unaddressed. An array of literature exists on the inclusion of women into environmental...
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Academic Discourse(s) and Practitioner Perspectives: Gendered Climate Adaptation Strategies

  • Prediction of phase noise and jitter in ring oscillators

    Creator:
    Barton, Nathen
    Abstract:
    This thesis presents distinctly different methods of accurately predicting phase noise and absolute jitter in ring oscillators. The phase noise prediction methods are the commercially available SpectreRF and isf_tool, a simulator developed in this work from the Hajimiri and Lee theory of phase noise. Absolute jitter due to deterministic supply...
    Resource Type:
    Masters Thesis
    Full Text:
    Sadate, Shanthi Bhagavatheeswaran, Dicle Ozis, Mithat Unsal, Nilakantan Seshan, Vinay Chandrasekhar

  • Design of current-mode track and hold circuits

    Creator:
    Chennam, Madhusudhan
    Abstract:
    A differential current-mode track-and-hold (T/H) amplifier is used to sample an analog input signal. A new closed-loop current-mode architecture has been developed that overcomes the stability problems associated with closed-loop architectures. The T/H circuit has been fabricated in a 0.35-μm quad-metal, double-poly CMOS process. The measured total harmonic distortion (THD)...
    Resource Type:
    Masters Thesis
    Full Text:
    : Design of Current-mode Track and Hold Circuits Abstract approved: Tern S. Fiez A differential current

  • Design of sample and holds using CCDs in a standard CMOS process

    Creator:
    Ghatak, Kalyan Brata
    Abstract:
    The parasitic components of MOS switches at high speeds affect the linearity and resolution of CMOS sample and hold circuits. CCD-based circuit design can offer good performance at high speeds. This thesis presents the design of sample and hold circuits using charge-coupled device structures in a standard CMOS process. Three...
    Resource Type:
    Masters Thesis
    Full Text:
    S/Hs have been characterized using a continuous- time integrator and a zE ADC. The CCDs, with a

  • 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:
    : Tern S. Fiez A variable gain, high linearity, low power baseband filter for WLAN appli- cations is

  • 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:
    Rate. Abstract approved: Tern S. Fiez In this dissertation, a new LI A/D converter is presented that

  • 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:
    Mayaram Terri S. Fiez This thesis presents a design-oriented model for lightly doped CMOS sub- strates

  • CO2 reduction in aqueous-ionic liquid solution in microscale-based corona reactor, CO₂ reduction in aqueous-ionic liquid solution in microscale-based corona reactor

    Creator:
    Miao, Yu
    Abstract:
    Global warming problem is becoming an increasingly important environmental concern and CO₂ is considered as the major cause of global warming. Among various methods of CO₂ utilization, conversion of CO₂ to value added chemical products is the most attractive. In this study, a microscale-based corona reactor is introduced for reduction...
    Resource Type:
    Masters Thesis
    Full Text:
    -direction (m/s 2 ); gy Gravity in y-direction (m/s 2 ); gz Gravity in z-direction (m/s 2 ); H

  • Fundamental Investigations of Electrocatalysis: Mechanistic Implications of Catalyst Electronic Structure

    Creator:
    Carvalho, O. Quinn
    Abstract:
    Heterogeneous catalysis modulates the rate and selectivity of reaction processes by stabilizing a series of intermediate states on solid surfaces, facilitating the production of many commodity chemicals modern society relies upon. Conventional, thermal catalytic processes—conducted at elevated temperatures and pressures—source thermal, mechanical, and chemical potential energy from carbon-hydrogen bonds— combustion...
    Resource Type:
    Dissertation
    Full Text:
    Figure 3.1. (a) CV collected at 10 mV/s in quiescent 0.1 M NaxH3-xPO4 in the absence (dashed black trace