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Radio frequency signal power amplifier combining network

  • US 5,438,684 A
  • Filed: 03/10/1994
  • Issued: 08/01/1995
  • Est. Priority Date: 03/13/1992
  • Status: Expired due to Term
First Claim
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1. A radio frequency (RF) signal power amplifier combining network responsive to a control signal for operation in a linear mode or a saturation mode, said RF signal power amplifier combining network comprising:

  • a first amplifier for amplifying a first RF signal in the linear mode;

    a second amplifier for amplifying a second RF signal in the saturation mode, the second amplifier coupled to the first amplifier in an electrically parallel configuration;

    first and second output transmission lines coupled to the first and second amplifiers, respectively;

    a common node that couples the first and second output transmission lines; and

    a switch in series with at least one of the first and second output transmission lines and responsive to the control signal for coupling or decoupling the corresponding one of the first and second amplifiers and the common node.

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