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Method and arrangement for detecting load mismatch, and a radio device utilizing the same

  • US 20040075504A1
  • Filed: 10/10/2003
  • Published: 04/22/2004
  • Est. Priority Date: 10/18/2002
  • Status: Active Grant
First Claim
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1. An arrangement for detecting impedance mismatch between an output of a radio frequency amplifier and an input of a load coupled to the output of the radio frequency amplifier, of which the radio frequency amplifier comprises an amplifying component, the arrangement comprising:

  • first monitoring means adapted to monitor a measurable electric effect at other side of the amplifying component than the load and to produce a first measurement signal, second monitoring means adapted to monitor a measurable electric effect between the amplifying component and the load and to produce a second measurement signal, and decision-making means adapted to receive said first and second measurement signals and to decide, whether said first and second measurement signals together indicate impedance mismatch.

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