circular polarity elliptical horn antenna

circular polarity elliptical horn antenna

  • CN 1,906,810 B
  • Filed: 05/18/2005
  • Issued: 11/25/2015
  • Est. Priority Date: 05/18/2004
  • Status: Active Grant
First Claim
Patent Images

1. , along the AFH antenna feed horn that bearing of trend extends, comprising:

  • The receiving terminal determined by oval aperture, wherein said oval aperture produces oval irradiation, and the irradiation of this ellipse is made by adjustment to be had relatively high irradiation along satellite band and has relatively low irradiation perpendicular to described satellite band;

    There is the waveguide port of linear polarity pickups, along bearing of trend and described aperture spaced apart;

    Extend to waveguide port from described aperture and comprise inner surface elliptical reception cone and transition portion, this transition portion is transitioned into circular waveguide from ellipse;

    WithFor propagating with required frequency and there is when inciding on described aperture the signal of the circular polarity represented by orthogonal linear components, elliptical reception cone to become with the internal surface configurations of transition portion in described orthogonal linear components relative to another differential phase shift 90 degree, after propagating through elliptical reception cone and transition portion with convenient signal, this signal is converted to linear polarity from circular polarity.

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