矢量网络分析仪中的电子校准技术

The electronic calibration technologies for vector network analyzer

电子校准是一种新兴的矢量网络分析仪自动校准技术。本文介绍了电子校准件的定标原理以及误差系数求解方法,为了提高误差系数求解精度,根据电子校准件的特性,提出了加权最小二乘解的误差系数求解方法,将电子校准件中校准标准的定标不确定度作为加权因子乘到误差系数求解方程组中。论文最后使用实际电子校准件对不同误差系数求解算法进行了比较,证明了本文算法的有效性。

Electric Calibration is a new calibration method for Vector Network Analyzer. This paper introduces the definition method of Electronic Calibration Standards and the resolution method of error terms. In order to increase the accuracy of the error terms, according to the characteristics of the Electronic Calibration Module, this paper presents a weighted least squared resolution by multiplying each equation with a weighting factor that represents the uncertainty of the standard accuracy. In the end, using an Electric Calibration Module, comparisons are made between the weighted least squared calibration method and traditional methods. The experiment result verifies the higher accuracy of the method which this paper presented.