Automatic rf output power-limiting amplifier with dynamic feedback

Abstract

An amplifier includes a gain stage having a gain stage input and a gain stage output and an impedance matching circuit connected to the gain stage output, the impedance matching circuit including an input and an output. The amplifier also includes a coupling circuit connected to the input of the impedance matching circuit and a shorting circuit connected to the output of the impedance matching circuit. The coupling circuit provides a voltage to the shorting circuit that causes the shorting circuit create a short to ground through a reflecting capacitor which causes a reflection to be provided to the output of the impedance matching circuit and that is transmitted to the coupling circuit to increase the voltage provided to the shorting circuit by the coupling circuit.

Dependencies are inferred from the claim text.