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TILT-DEPENDENT BEAM-SHAPE SYSTEM

  • US 20100134359A1
  • Filed: 10/16/2006
  • Published: 06/03/2010
  • Est. Priority Date: 10/16/2006
  • Status: Active Grant
First Claim
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1. A system for changing the radiation pattern shape of an antenna array in down-link during electrical tilting, said antenna array comprising multiple antenna elements, said system comprising:

  • a phase-shifting device provided with a primary port configured to receive a transmit signal, and multiple secondary ports configured to provide phase shifted output signals to each antenna element,a phase-taper device configured to change phase taper over the antenna elements, and thus the beam shape, with tilt angle (θ

    tilt).

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