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    Modular Frequency Multiplier and Filters for the NASA Global Hawk Snow Radar

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    TALASILA_ku_0099M_15108_DATA_1.pdf (7.006Mb)
    Issue Date
    2017-05-31
    Author
    Talasila, Hara Madhav
    Publisher
    University of Kansas
    Format
    130 pages
    Type
    Thesis
    Degree Level
    M.S.
    Discipline
    Electrical Engineering & Computer Science
    Rights
    Copyright held by the author.
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    Abstract
    This thesis documents the process of adapting the 2-18 GHz Snow Radar to meet the requirements for operation on manned and unmanned platforms from 700 ft to 70,000 ft. The primary focus of this work is the development of an improved microwave chirp generator implemented with frequency multipliers. The miniaturized design presented here reduces reflections in the chain, size, and weight compared to current large and heavy connectorized chain. Each stage is implemented by a drop-in type modular design operating at microwave and millimeter wavelengths; realized with commercial surface-mount integrated-circuits, wire-bondable chips, and custom filters. Another focus of this thesis is the development of different distributed element band-pass filters used in the frequency multiplier like edge-coupled band pass filters on alumina substrate and interdigital cavity filters developed in-house. Overall, the measured results of the modular frequency multiplier and filters match with the expected responses from original design and co-simulation outputs.
    URI
    http://hdl.handle.net/1808/24131
    Collections
    • Engineering Dissertations and Theses [1055]
    • Theses [3824]

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
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    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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