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. The calibration of a universal vector network analyzer (VNA) dual-port test fixture requires at least three known criteria to achieve.This paper proposes two virtual symmetric networks based on the Triple Through theory and proposes a method that only requires a standard network analysis A new method for calibrating the dual-port test fixture is provided.After calibrating the test fixture in this way, the experimental results deducting the influence of the fixture are in good agreement with the direct test data without the test fixture transfer, which proves that the method is accurate and simple.