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射频与微波放大器设计 -放大器的分类

  由于三阶交调点比二阶交调低。因此三阶交调点决定了放大器动态范围或带宽的上限。

  在放大器输入端输入两个频率相近、功率相等的信号。放大器的输出端接频谱仪,在频谱仪上直接读出主输出功率(Pe_dBm)和三三阶交调f1输出功率(P2f1-f2dBm),则PIP (dBm)可以得到。

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