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Smart antenna arrays

  • US 6,795,018 B2
  • Filed: 05/23/2002
  • Issued: 09/21/2004
  • Est. Priority Date: 06/12/2001
  • Status: Expired due to Term
First Claim
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1. A smart antenna basestation arrangement comprising a 2-dimensional array of antenna elements wherein:

  • the antenna array provides omnidirectional beam coverage in a two dimensional azimuth plane, and stored beamforming weight sets optimised for specific beam directions are operable to enable the array to generate directional downlink beams in the azimuth plane; and

    the array has a physical periodicity whereby to reduce the number of principal weight sets for specific beam directions and whereby secondary weight sets are obtained by rotation.

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