Patent ID: 9136804
Filing Date: 2015-09-15
Classification: H03F

Abstract:
1. A device, comprising: a Doherty amplifier having a carrier path and a peaking path, the Doherty amplifier including a carrier amplifier configured to amplify a signal received from the carrier path and a peaking amplifier configured to amplify a signal received from the peaking path; a resistive switch having a first terminal connected to the peaking path and a second terminal connected to a voltage reference; and a controller configured to set the resistive switch to a first resistance value when a power input of the Doherty amplifier is below a threshold and to a second resistance value when the power input of the Doherty amplifier is above the threshold and wherein the first terminal of the resistive switch is connected to an input terminal of the peaking amplifier and the second terminal of the resistive switch is directly connected to the reference voltage.