| 摘要 |
An RF relay device for removing the interference of signal through interference elimination function and guaranteeing the linearity of the high power amplifier through a pre-distortion function is provided to minimize the generation of parasitic amplified signal through linearization amplifier. A pre-distortion linearization amplifier(600) generates the signal in which the size of the parasitism amplified signal is the same and which denotation is opposite. The generation of the parasitism amplified signal is minimized. The linearity of the high power amplifier(620) is guaranteed. A pre-distortion apparatus(610) distorts the input signal. The high power amplifier outputs the amplified signal. A combiner(630) attenuates the outputted partial signal. A learning unit(640) is the pre-distortion signal of the apparatus for pre-distortion with the signal outputted in the high power amplifier. The signal in which the parasitism amplified signal and size are the same and which denotation is opposite are generated besides the necessary original signal. |
