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Compact spacecraft antenna field aperture load coupler

  • US 9,470,732 B2
  • Filed: 05/08/2014
  • Issued: 10/18/2016
  • Est. Priority Date: 05/08/2014
  • Status: Active Grant
First Claim
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1. An apparatus adapted to reduce a peak radiated flux density of a horn antenna, comprising:

  • a surrogate waveguide comprising;

    a first section having a first end configured to be disposed within a waveguide portion of the horn antenna;

    a second section having a second end configured to extend to or beyond a wide end of the horn antenna, wherein the second section of the surrogate waveguide comprises a flared aperture where the flare ends at or outside the wide end of the horn antenna and expands to a maximum cross-sectional dimension that is smaller than the largest cross-sectional dimension of the wide end of the horn antenna; and

    a face plate at and inside the wide end of the horn antenna through which the surrogate waveguide passes.

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