20 results about "Doherty amplifier" patented technology

The Doherty amplifier is a modified class B radio frequency amplifier invented by William H. Doherty of Bell Telephone Laboratories Inc in 1936. Whereas a conventional Class-B amplifier can clip on high input-signal levels, the Doherty power amplifier is able to accommodate signals with high peak-to-average power ratios by using two amplifier circuits within the one overall amplifier to accommodate the different signal levels. In this way, the amplifier achieves a high level of linearity while still retaining a good level of power efficiency.