| 摘要 |
<p>A radio transmitter includes a power amplifier, and also includes circuitry for determining a relative distortion level in an output signal, for comparing this relative distortion level with a reference distortion level, and for controlling a bias input of the power amplifier on the basis of the comparison. <??>The bias input can be controlled to make the relative distortion level equal to the reference distortion level, and the reference distortion level can be set on the basis of a required Adjacent Channel Leakage Ratio (ACLR), to ensure that the required ACLR is met, while also ensuring that the power consumption of the device is not unnecessarily increased. <IMAGE></p> |
