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Multi-mode bypass driver amplifier with tunable load matching

  • US 8,666,338 B2
  • Filed: 01/23/2012
  • Issued: 03/04/2014
  • Est. Priority Date: 01/23/2012
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a driver amplifier in a multi-mode bypass transmit path configured to amplify an input radio frequency (RF) signal and provide an amplified RF signal, the multi-mode bypass transmit path exclusive of a power amplifier; and

    a tunable impedance matching circuit coupled to the driver amplifier and configured to match an output impedance of the driver amplifier for each of a plurality of modes of the driver amplifier.

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