The thermal design of a high-power C-band phased array with integral solid-state amplifiers, and its integration into a three-axis-stabilized spacecraft, are discussed. A thermal design has been developed employing fixed-conductance heat pipes and an embedded heat pipe radiator panel. The design tradeoffs and problems encountered in removing 2,000 W from a 1-m-diameter array are described, and possible solutions are presented. The highly concentrated heat source associated with solid-state amplifiers has emphasized the importance of minimizing MMIC chip internal thermal resistance in terms of the overall thermal control subsystem weight. Thermal test verification issues and concerns with 1-g operation in integrated spacecraft testing are also addressed.


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    Title :

    Thermal Design of a High-Power C-Band Phased Array With Integral MMIC Amplifiers


    Additional title:

    Sae Technical Papers


    Contributors:
    Albright, G. (author) / Yogev, I. (author) / Zaharovits, M. (author) / Kelly, W. H. (author)

    Conference:

    International Conference On Environmental Systems ; 1994



    Publication date :

    1994-06-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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