重点分析介绍研究了GPS天线到接收模块GPS信号输入端之间射频传输线的阻抗匹配问题。
I have studied the impedance-matching of RF transmission line between the antenna and the GPS module.
驱动放大器放大信号到一个可以接受的输入量级以驱动功率放大器，放大后的射频信号被传送到天线分离滤波器进行滤波，最后通过天线发射出去。
The driving amplifier enlarges signal to reach an adaptive level in order to drive the power amplifier. The enlarged signal is delivered to a filter and transmitted through an antenna.
将所述带内信号与所述带外预失真信号相 加，作为射频功率放大器的输入。
The present invention compensates the non-linear distortion of RF power amplifier in form of out of band compensating signal.
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