A rectenna has been designed to provide DC energy for the propulsion engines of the Microwave Lightcraft. It uses very high density sub‐arrays to convert the microwave energy in a beam of power density 4 kW/cm2 with an efficiency of 56 %. Each sub‐array consists of an ensemble of very short dipoles and Schottky diode elements deposited on and within a semiconductor substrate. The substrate sits down on a low‐loss wafer carrier which also performs the function of water cooling. The rectenna design permits the periodic reflection and focussing of the beam to maintain a plasma nose‐cone in front of the vehicle. In addition, the rectenna is capable of transmitting stored energy to this ‘air‐spike’ region to maintain that plasma in the event of a loss of beam power.


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    Titel :

    A 35 GHz Extremely High Power Rectenna For The Microwave Lightcraft


    Beteiligte:
    Alden, A. (Autor:in) / Pakhomov, Andrew V. (Herausgeber:in)

    Kongress:

    BEAMED ENERGY PROPULSION: First International Symposium on Beamed Energy Propulsion ; 2002 ; Huntsville, Alabama (USA)


    Erschienen in:

    AIP Conference Proceedings ; 664 , 1 ; 292-302


    Erscheinungsdatum :

    14.05.2003


    Format / Umfang :

    11 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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