| 摘要 |
<p>A robust amplifier consists of two delay lines 12 and 23 linked by a number of discrete amplifiers 13. Distortion correction is carried out by distortion feed forward. This is achieved by sampling the output of each amplifier 13 at a coupler 17 and then subtracting this sample from the input signal to later amplifiers (13) along the delay line 12 at directional coupler 19. As a result each discrete amplifier's distortion is corrected by all of the following discrete amplifiers (13) in the amplifying circuit.</p> |
