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Dynamically variable beamwidth and variable azimuth scanning antenna

  • US 20040061653A1
  • Filed: 09/26/2002
  • Published: 04/01/2004
  • Est. Priority Date: 09/26/2002
  • Status: Active Grant
First Claim
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1. A dynamically variable beamwidth and variable azimuth scanning antenna comprising:

  • a first plurality (M) of spaced-apart active radiating columns each having a respective column signal node, the columns collectively defining a beam having a beamwidth and an azimuth scan angle correlated to phase shifts between the respective column signal nodes and a feed node; and

    a second plurality (N) of continuously adjustable mechanical phase shifters each having an independent remotely controlled drive and being directly electrically connected to a respective radiating column between the column signal node thereof and the feed node, the phase shifters being independently operable to vary the phase shift between the respective column signal nodes and the feed node to thereby vary at least one of the beamwidth and the azimuth scan angle of the beam defined by the plurality of active radiating columns.

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