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System and method for adaptive beamforming for specific absorption rate control

  • US 8,630,596 B2
  • Filed: 05/08/2013
  • Issued: 01/14/2014
  • Est. Priority Date: 09/08/2009
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a modifiable mobile communication device including;

    a first antenna coupled by a first transmission path to a first fractional power amplifier;

    a second antenna coupled by a second transmission path to a second fractional power amplifier;

    a first returned power detector coupled to the first transmission path, and a second returned power detector coupled the second transmission path;

    a beamformer unit configured to provide an adaptive beam shaping pattern to the first and second fractional power amplifiers, the adaptive beam shaping pattern configured to shape a transmitted beam pattern to minimize an amount of transmitted power reflected back to at least one of the first and second antennas; and

    a baseband processor configured to provide beam pattern requirements to the beamformer unit;

    wherein the first and second returned power detectors provide return loss sampling information to the beamformer unit.

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