An apparatus is disclosed for controlling a power amplifier that is coupled to an antenna element of an antenna array. In example implementations, an apparatus includes an antenna element of an antenna array and a power amplification system. The power amplification system includes at least one input node, at least one output node coupled to the antenna element, and at least one power amplifier branch coupled between the at least one input node and the at least one output node. The power amplification system also includes at least one feedback node coupled to the at least one output node, at least one control node, and a feedback control loop coupled between the at least one feedback node and the at least one control node.