• DocumentCode
    272633
  • Title

    A Reflectarray-Based Dual-Surface Reflector Working in Circular Polarization

  • Author

    Joyal, Marc-André ; El Hani, Rachid ; Riel, Mathieu ; Demers, Yves ; Laurin, Jean-Jacques

  • Author_Institution
    Poly-Grames Res. Center, Ecole Polytech. de Montreal, Montréal, QC, Canada
  • Volume
    63
  • Issue
    4
  • fYear
    2015
  • fDate
    Apr-15
  • Firstpage
    1306
  • Lastpage
    1313
  • Abstract
    This paper presents the design of a dual-surface reflector (DSR) antenna working in dual circular polarization (CP). This DSR consists in a linearly polarized dual-gridded reflector (DGR) that is made of a solid parabolic reflector on which a reflectarray that reflects horizontal polarization (HP) and is transparent to the vertical polarization (VP) is affixed. The conversion from linear polarization (LP) to CP of this antenna is realized by introducing a three-layer meander-line circular polarizer optimized for oblique incidence. The antenna system was designed to generate two main beams in different directions and orthogonal CPs. This antenna has been fabricated and characterized. For the two polarizations, the realized gain is higher than 30 dB with a cross-polarization discrimination (XPD) higher than 27 dB in the 18-20 GHz frequency band.
  • Keywords
    microwave antennas; polarisation; reflector antennas; CP; DGR; DSR antenna working; HP; LP; VP; XPD; antenna system; circular polarization; cross polarization discrimination; dual circular polarization; frequency 18 GHz to 20 GHz; gain 27 dB; horizontal polarization; linear polarization; linearly polarized dual gridded reflector; meander line circular polarizer; oblique incidence; reflectarray based dual surface reflector working; solid parabolic reflector; vertical polarization; Antenna radiation patterns; Feeds; Insertion loss; Polarization; Prototypes; Solids; Circular polarization; Circular polarization (CP); dual-gridded reflector; dual-gridded reflector (DGR); dual-surface reflector; dual-surface reflector (DSR); impedance sheets; meander-line polarizers; periodic structures; reflectarray;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.2014.2388204
  • Filename
    7001643
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=272633