The Doherty Amplifier is a type of radio frequency amplifier designed to improve efficiency, particularly in communication systems. It combines two amplifiers: a main amplifier that operates at high power and a peaking amplifier that activates during higher signal levels. This design allows for better performance in varying signal conditions. Developed by William H. Doherty in the 1930s, the Doherty Amplifier is widely used in cellular networks and broadcasting due to its ability to maintain linearity while reducing power consumption. This makes it an essential component in modern wireless communication technologies.