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Optimization of error loops in distributed power amplifiers

  • US 6,972,622 B2
  • Filed: 05/12/2003
  • Issued: 12/06/2005
  • Est. Priority Date: 05/12/2003
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a main amplifier within a carrier null loop and configured to receive an RF input signal;

    an error amplifier within an error loop;

    a switch disposed in the carrier null loop and configured to selectively disable the carrier null loop to provide injection of an actual RF signal amplified by the main amplifier into the error loop to allow optimization of the error loop using the actual RF signal, wherein the switch inhibits reception of the RF input signal by the error amplifier when the carrier null loop is disabled.

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