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Interferometric antenna array for wireless devices

  • US 6,844,854 B2
  • Filed: 04/05/2002
  • Issued: 01/18/2005
  • Est. Priority Date: 04/05/2002
  • Status: Expired due to Fees
First Claim
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1. An interferometric antenna array for use with a wireless communications device in reducing electromagnetic energy in a region proximate to the antenna array, comprising:

  • two radiating elements formed of conducting material and adapted for use with a wireless communications device and arranged side-by-side separated by a distance;

    a power splitting means coupled to the wireless communications device for dividing a signal from a feed of the wireless communications device into two split signals;

    a phase-shifting means coupled to the two radiating elements and to the power splitting means for creating a phase difference between the two split signals, the phase difference created by the phase-shifting means selected to form a wave pattern having a spatial null proximate to the antenna array;

    wherein each of the two radiating elements is fed by one of the two phase-shifted split signals.

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