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Feed horn for a telecommunications antenna

  • US 4,929,962 A
  • Filed: 12/09/1987
  • Issued: 05/29/1990
  • Est. Priority Date: 12/09/1986
  • Status: Expired due to Fees
First Claim
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1. A feed horn for a telecommunications antenna, said feed horn being fabricated from a moldable material, said feed horn comprising:

  • a radiating portion having a circular aperture, said radiating portion being formed by an annular flange provided with a least two concentric grooves forming two traps, said grooves having open ends which are substantially coplanar;

    a transition having first and second ends and formed by waveguide sections of progressively varying cross-section, said transition being coupled at said first end to said radiating portion;

    a flange surrounding said second end of said transition and which provides a coupling with a rectangular waveguide; and

    fixing means for fixing said feed horn in a support, said fixing means comprising two concentric cylindrical flanges having different diameters and located in the external central portion of said horn.

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