Doherty amplifier

Doherty amplifier

[′dō·ərd·ē ‚am·plə‚fī·ər] (electronics) A linear radio-frequency power amplifier that is divided into two sections whose inputs and outputs are connected by quarter-wave networks; for all values of input signal voltage up to one-half maximum amplitude, section no. 1 delivers all the power to the load; above this level, section no. 2 comes into operation.