a dynamic power amplifier advantageously employed in a wireless terminal for transferring and receiving signals from a base terminal includes an input amplifier adapted to receive an input signal having a given power signal level corresponding to the distance of said wireless terminal to the terminal and adapted to provide an amplifier output signal having a given power output signal level . the dynamic amplifier further includes a power sensor configured to receive the power output signal and to generate a power indication signal corresponding to the power output signal , and a converter adapted to receive the power indication signal in order to generate a biasing signal corresponding to the power indication signal . the biasing signal is applied to the input amplifier so that the operating bias point of the power amplifier varies as a function of the power indication signal .