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ANTENNA RESONANCE FREQUENCY CONTROL DRIVER

  • US 20150108848A1
  • Filed: 10/22/2013
  • Published: 04/23/2015
  • Est. Priority Date: 10/22/2013
  • Status: Active Grant
First Claim
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1. An antenna control circuit comprising:

  • an H-bridge circuit including three half-bridge circuits; and

    a controller configured to control the H-bridge circuit;

    wherein a first half-bridge circuit and a second half-bridge circuit of the three half-bridge circuits are configured to electrically connect across a resonant antenna with a first resonant frequency and a second resonant frequency;

    wherein a third half-bridge circuit is configured to electrically connect to a first capacitance connected to the resonant antenna, wherein the controller is configured to control the third half-bridge circuit to switch the connection of the first capacitance to the resonant antenna to a first position that changes the resonant frequency of the resonant antenna to the first resonant frequency.

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