| 摘要 |
An RF power amplifier with a pulse modulating facility is disclosed in which a pre-emphasized pulse modulating signal is derived from a plurality of amplitude values stored in a memory. The stored values are continuously changed by a control signal to give the output signal of the amplifier the desired shape. This compensates for nonlinearities and aging effects. The time required for the modulated carrier wave to pass through the amplifier need not be considered, because the envelope comparison between the amplifier output signal and the required modulating signal, which generates the control signal, is independent of the time of occurrence of the amplifier output signal. |
