Super surface lens antenna

Super surface lens antenna

  • CN 107,275,798 B
  • Filed: 06/22/2017
  • Issued: 08/06/2021
  • Est. Priority Date: 06/22/2017
  • Status: Active Grant
First Claim
Patent Images

1. The super-surface lens antenna is characterized in that the super-surface lens antenna is realized by loading an ultrathin transmission type wave beam focusing super-surface on the aperture surface of a conical horn antenna, the transmission type wave beam focusing super-surface is composed of a plurality of transmission type linear polarization conversion unit structures, each transmission type linear polarization conversion unit structure is composed of a three-layer metal structure and two layers of medium substrates, the metal grids, the medium substrates, a metal oval open resonant ring, the medium substrates and the metal grids are sequentially arranged from bottom to top, the metal grids on the uppermost layer and the metal grids on the lowermost layer are mutually orthogonal, the middle metal oval open resonant ring is obliquely arranged by 45 degrees, and the super-surface lens antenna is a polarization rotating assembly;

  • on the premise that the transmissivity of the transmission type linear polarization conversion unit structure is kept unchanged, linear polarization conversion transmission phase shift within the range of 0-180 degrees of the transmission type linear polarization conversion unit structure is realized through modulation of the opening angle, the length of the long axis and the length of the short axis of the metal elliptical opening resonance ring;

    linear polarization conversion transmission phase shift of the transmission type linear polarization conversion unit structure within the range of 180-360 degrees is realized through 90-degree in-plane rotation of the metal elliptical opening resonance ring;

    the length of the major axis of the metal elliptical open resonant ringuMinor axis lengthvAnd opening angleα

    Between are linear functions;

    u=c1*α

    +c2

    v=c3*u+c4whereinc1

    c2

    c3Andc4are all coefficients.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×