In order to remove the link error caused by the switch matrix in the multi-channel test,a method of multi-channel test using single-port error is proposed in this paper.Firstly,the vector network analyzer and switch matrix are connected to the electronic calibration parts respectively,and the first SOLT self-calibration and the second single-port SOL calibration are carried out.Then,the S-parameters of each channel of the switch ma-trix are calculated from the single-port error data,and the S-parameters of the measured part are obtained from the T-parameters.The experiment shows that this method has strong practical value in engineering.
维普
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