Amplifier using nonlinear drivers

摘要

A device includes a Doherty amplifier having a main path and a peaking path. The Doherty amplifier includes a main amplifier configured to amplify a signal received from the main path and a peaking amplifier configured to amplify a signal received from the peaking path when the signal received from the peaking path exceeds a predetermined threshold. The device includes a first driver amplifier connected to the main path of the Doherty amplifier. The first driver amplifier is configured to exhibit an amplitude and phase distortion characteristic that is an inverse of an amplitude and phase distortion characteristic of the main amplifier. The device includes a second driver amplifier connected to the peaking path of the Doherty amplifier. The second driver amplifier is configured to exhibit an amplitude and phase distortion characteristic that is an inverse of an amplitude and phase distortion characteristic of the peaking amplifier.

主权项

1. A device, comprising:
a Doherty amplifier having a main path and a peaking path, the Doherty amplifier including a main amplifier configured to amplify a signal received from the main path and a peaking amplifier configured to amplify a signal received from the peaking path when the signal received from the peaking path exceeds a predetermined threshold; a first driver amplifier connected to the main path of the Doherty amplifier, the first driver amplifier configured to exhibit an amplitude and phase distortion characteristic that is an inverse of an amplitude and phase distortion characteristic of the main amplifier; and a second driver amplifier connected to the peaking path of the Doherty amplifier, the second driver amplifier configured to exhibit an amplitude and phase distortion characteristic that is an inverse of an amplitude and phase distortion characteristic of the peaking amplifier.