Apparatus and method for a tunable multi-mode multi-band power amplifier module

摘要

An apparatus and method amplify a signal for use in a wireless network. The apparatus includes a power amplifier, an envelope modulator, a tunable matching network (TMN), and a controller. The power amplifier outputs the signal at an output power. The envelope modulator controls a bias setting for the power amplifier. The TMN includes a plurality of immittance elements. The controller is operably connected the envelope modulator and the TMN. The controller identifies a desired value for the output power of the power amplifier, controls the output power of the power amplifier by modifying the bias setting of the power amplifier, and sets a number of the plurality of immittance elements based on the bias setting of the power amplifier.

主权项

1. An apparatus for amplifying a signal for use in a wireless network, the apparatus comprising:
a power amplifier configured to output the signal at an output power; an envelope modulator configured to control a bias voltage of the power amplifier; a tunable matching network (TMN) including a plurality of immittance elements; a controller operably connected the envelope modulator and the TMN, the controller configured to identify a desired value for the output power of the power amplifier, select a bias setting for the power amplifier from a plurality of bias settings based on the desired value for the output power of the power amplifier, control the output power of the power amplifier based on the bias setting of the power amplifier, and set a number of the plurality of immittance elements based on the bias setting of the power amplifier; and a switch operably connected to the controller, the switch, when set, configured to cause the signal to bypass the power amplifier.