基于矢量误差修正的实时负载牵引测量模型方法

提出了一种新型基于矢量误差修正的负载牵引测量模型方法。相比于传统负载牵引测量系统,该方法从8-term矢量误差模型入手,建立接收机与被测件端口处电压波的函数关系,通过对矢量网络分析仪进行矢量校准和对内部接收机进行一次绝对功率校准,可实时测量被测件的输入/负载反射系数,输入/输出功率及功率增益、效率等。按照模型方法搭建了相应的硬件系统,与商用Focus的类似系统进行了比较验证,实验结果表明具有良好的效果,证明了所提方法的准确性。

Real-time Load Pull Measurement Technique Based Vector Error Correction Method

A novel load pull measurement technique based vector error correction method is developed. The technique includes the 8-term vector error calibration on the vector network analyzer and one-tier absolute power calibration for one receiver within the vector network analyzer, which could obtain the input/load reflection coefficient, input/output power and power gain for the device under test at one time. Then the measurement system is set up based the proposed method. Compared with the commercial Focus load pull system, the test result shows they have promising results, which demonstrates the accuracy of the proposed method.