单端口低频矢量网络分析仪的设计.

With the increasing number of wireless communication applications, the field lest environment is more and more complex, portable network analyzer can better help staff to do field lest, maintenance. In this paper, we design a low frequency vector network analyzer, which uses the sequential quadrature measurement mechanism, composes of swept signal source, reflected bridge, analog multiplier, standard calibrator and touch display etc. It can measure VSWR, impedance, reflection loss and other parameters for the devices within the 50 kHz to 60 MHz frequency range. These parameters can be displayed in the touch LCD screen. After testing, the network analyzer designed in this paper can be stable and reliable operation. [ABSTRACT FROM AUTHOR]