The main function of the network analyzer is to measure network parameters, which can directly measure complex scattering parameters. The automatic network analyzer can also perform error correction on the measurement results point by point.
When all port terminals of an arbitrary multi-port network are matched, the incident traveling wave an input by the nth port will be scattered to all other ports and emitted.
The vector network analyzer comes with a signal generator that can frequency scan a frequency band. If it is a single-port measurement, add the excitation signal to the port and measure the amplitude and phase of the reflected signal. Determine the impedance or reflection. For dual-port measurement, you can also measure the transmission parameters. Because it is obviously affected by distribution parameters, etc., the network analyzer must be calibrated before use.