Interleaving sparse arrays: a new way to polarization-agile

M Simeoni, IE Lager, CI Coman

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    6 Citations (Scopus)

    Abstract

    Application such as polarization diversity communications, frequency re-use and syntheti aperture radar (SAR) may benefit from the use of polarization-agile antennas, i.e. antennas whose polarization state can be dynamically changed over time (see [1] fir a comprehensive survey on this topic). Most polarization-agile antennas described [1] make use of doubly-polarized elementrary radiators in conjunction with active devices, such as PIN diodes, for varying the polarization properties of the radiated waves 9see[2] for a typical implemention of this conept). The present contribution advocates and alternative approach to obtaining polarization-agility. The strategy relies on interleaving (complementary) sparse sub-arrays each of which radiates waves with linear, orthogonal polarizations. In this manner, any polarization state: adjustable linear, right- and left-handed circular or elleptical can be synthesized at array level. The advantage of the proposed appraoach is that it makes use of simple elementary antennas radiating linearly-polarized waves, thus avoiding the complicated doubly-polarized elements abd the need fir PIN diodes for controlling the obtained polarization. The validity of this approach is demonstrated by analyzing two examples of inter-leaved array antennas that allow obtaining an arbitrarily rotated, linear polarization.
    Original languageUndefined/Unknown
    Title of host publicationProceedings of the 2007 IEEE Ap-S international symposium
    Editors s.n.
    Place of PublicationHonolulu,Hawaii
    PublisherOmnipress/ IEEE
    Pages3145-3148
    Number of pages4
    ISBN (Print)1424408784
    Publication statusPublished - 2007
    Event2007 IEEE AP-S international Symposium - Honolulu,Hawaii
    Duration: 10 Jun 200715 Jun 2007

    Publication series

    Name
    PublisherOmnipress/ IEEE

    Conference

    Conference2007 IEEE AP-S international Symposium
    Period10/06/0715/06/07

    Keywords

    • conference contrib. refereed
    • Conf.proc. > 3 pag

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