Patent ID: 9246443
Filing Date: 2016-01-26
CPC Classification: H03F,H04B,H04W,Y02B,Y02D

Claim Text:
1. A power amplifier module comprising: a power amplifier including a set of transistor stages and a plurality of bias circuits, at least one transistor stage from the set of transistor stages in electrical communication with a first bias circuit and a second bias circuit from the plurality of bias circuits, the first bias circuit configured to apply a first bias voltage to the at least one transistor stage and the second bias circuit configured to apply a second bias voltage to the at least one transistor stage, the plurality of bias circuits further including a third bias circuit and a fourth bias circuit, the third bias circuit configured to apply a different bias voltage than the first bias circuit and the fourth bias circuit configured to apply a different bias voltage than the second bias circuit, the third bias circuit and the fourth bias circuit in electrical communication with a different transistor stage from the set of transistor stages than the first bias circuit and the second bias circuit; and a controller configured to activate one of the first bias circuit and the second bias circuit.