System has both fixed-spot and scanning coverage. Advanced offset-fed spacecraft antenna systems operating in 30/20 GHz frequency bands developed to provide multiple-radiating fixed-spot and regional-coverage scanning beams for use on communications satellites. Operating at higher frequencies, provides alternate frequency bands for expansion of existing satellite services and achieving frequency reuse capability for conservation of frequency spectrum. 20-GHz transmitting antenna is offset-fed, dual-reflector configuration. 30-GHz receiving antenna has orthogonal polarized feeds, hyperbolic reflectors, and two subreflectors.


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    Titel :

    Multiple-Beam Communications Antenna


    Beteiligte:
    Myhre, R. W. (Autor:in) / Roberts, T. E. (Autor:in) / Wong, W. C. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.02.1989



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    A 20/30 GHz Multiple Beam Adaptive Antenna for Satellite Trunk Communications

    Lisi, M. / Politecnico di Torino / IEEE; Antennas and Propagation Society | British Library Conference Proceedings | 1989




    Dual-Polarization Multiple-Beam Antenna

    Jarett, David | AIAA | 1977


    A Multiple-Beam Torus Reflector Antenna

    Jarett, David | AIAA | 1977