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Compact radio frequency transmitting and receiving antenna and control device employing same

  • US 20050280598A1
  • Filed: 06/21/2004
  • Published: 12/22/2005
  • Est. Priority Date: 06/21/2004
  • Status: Active Grant
First Claim
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1. An antenna operable to transmit or receive radio frequency signals at a specified frequency, the antenna comprising:

  • a first loop of conductive material having a capacitance and an inductance, the capacitance and the inductance forming a circuit being resonant at the specified frequency; and

    a second loop of conductive material having two ends adapted to be electrically coupled to an electronic circuit, the second loop being substantially only magnetically coupled to the first loop and electrically insulated from the first loop;

    said first and second loops each having a loop axis, the loop axes of the first and second loops being substantially parallel or coincident;

    said antenna for use with a device for controlling the power delivered to an electrical load.

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