基于单端口误差的多通道测试方法研究  

Research on Multi-channel Test Method Based on One-port Error

作　　者：徐宙 刘连照 刘长海 马晖 张泽华 XU Zhou;LIU Lianzhao;LIU Changhai;MA Hui;ZHANG Zehua

机构地区：[1]63892部队

出　　处：《计量与测试技术》2024年第10期85-88,共4页Metrology & Measurement Technique

摘　　要：针对多通道测试时需去除开关矩阵带来的链路误差问题,本文提出了一种利用单端口误差进行多通道测试的方法。首先,将矢量网络分析仪、开关矩阵分别与电子校准件连接,并进行第一级SOLT自校准和第二级单端口SOL校准;然后,通过单端口误差数据计算开关矩阵各通道的S参数,并通过T参数得到被测件的S参数。实验表明:该方法具有较强的工程实用价值。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.

关 键 词：去嵌入 多通道测试 单端口误差 S参数 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]