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Apparatus and method for minimizing amplifier oscillation in an antenna system

  • US 8,731,464 B2
  • Filed: 02/27/2013
  • Issued: 05/20/2014
  • Est. Priority Date: 07/15/2010
  • Status: Active Grant
First Claim
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1. An antenna device for preventing oscillation of an amplifier, wherein the amplifier is electrically connected to a first antenna and a second antenna, the antenna device comprising:

  • the amplifier, the amplifier being configured to generate a first amplifier output directed to the second antenna and a second amplifier output directed to the first antenna;

    a coupling simulator configured to generate;

    a first coupling simulator output that varies from the first amplifier output based on a pre-determined phase effect value and a pre-determined attenuation effect value, wherein the first coupling simulator output is received by the first antenna; and

    a second coupling simulator output that varies from the second amplifier output based on the pre-determined phase effect value and the pre-determined attenuation effect value, wherein the second coupling simulator output is received by the second antenna;

    anda first combining device configured to generate a first amplifier input based on the first coupling simulator output;

    wherein the pre-determined phase effect value and the pre-determined attenuation effect value are assigned based on system parameters between the first antenna and the second antenna so as to prevent oscillation of the amplifier.

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