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Apparatus for steering an antenna system

  • US 7,224,246 B2
  • Filed: 10/22/2002
  • Issued: 05/29/2007
  • Est. Priority Date: 10/22/2001
  • Status: Expired due to Fees
First Claim
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1. Apparatus for adjusting the phase of signals supplied to a plurality of antenna elements of an antenna, the apparatus comprising:

  • a) first supporting means;

    b) a plurality of first transmission line parts disposed on the first supporting means;

    c) second supporting means;

    d) a plurality of second transmission line parts disposed on the second supporting means, each second transmission line part providing a respective capacitive coupling link for coupling together a respective pair of first transmission line parts to form a respective transmission line, the transmission lines being associated with respective antenna elements and having variable lengths to enable phase adjustment of antenna element signals;

    e) means for moving the second supporting means relative to the first supporting means and providing a means for moving each coupling link along its respective pair of first transmission line parts to increase the length of a respective transmission line or to shorten the length of the respective transmission line to effect phase adjustment of antenna element signals, andf) a signal distribution network incorporating the transmission lines, the signal distribution network including splitting means and providing a means for connecting a single antenna port to each of the antenna elements.

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