POWER AMPLIFIER

摘要

According to an embodiment of the present invention, a power amplifier includes: an amplifying unit which amplifies an input signal; a feedback unit which feeds the amplified signal back; and a feedback control unit which controls the size of the fed back signal based on the size of the input signal. The feedback control unit can increase linearity by controlling the size of the fed back signal to be larger as energy of the input signal is larger.