构建虚拟网络的网络分析仪夹具校准新方法

一般矢量网络分析仪(VNA)的双端口测试夹具校准，至少需要三个已知标准才能实现.本文基 于Triple-Through理论构建两个虚拟的对称网络，提出了一种只需要采用一个标准的网络分 析仪双端口测试夹具校准新方法.采用这种方法校准测试夹具后，扣除夹具影响的实验结果 与没有测试夹具转接直接测试数据十分吻合，证明该方法精度高，而且简单易行. 关键词： 校准 测试夹具 网络分析仪 散射参数测量

A new method based on the construction of hypothetical symmetrical networks for fixture calibration in network analyzers

At least three known standards are normally required for the full two-port test fixture calibration in vector network analyzers (VNA). In this paper, a calibration procedure using only one standard, based on establishing two hypothetical symmetrical fixtures using triple-through method, is shown. The results using th e calibrating method to subtract the influence of fixtures are in accord with th e directly measured data of the device-under-test (DUT) without the fixtures ver y well, which shows that the proposed method is very simple and accurate.