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FILTER FOR IMPROVED DRIVER CIRCUIT EFFICIENCY AND METHOD OF OPERATION

  • US 20120242284A1
  • Filed: 03/20/2012
  • Published: 09/27/2012
  • Est. Priority Date: 03/25/2011
  • Status: Active Grant
First Claim
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1. A transmitter device, comprising:

  • a driver circuit characterized by an efficiency, the driver circuit being electrically connected to a transmit circuit characterized by an impedance; and

    a filter circuit electrically connected to the driver circuit and configured to modify the impedance to maintain the efficiency of the driver circuit at a level that is within 20% of a maximum efficiency of the driver circuit, the impedance being characterized by a complex impedance value, the complex impedance value being within a range defined by a first real impedance value and a second real impedance value, a ratio of the first real impedance value to the second real impedance value being at least two to one.

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