从六端口相对功率理论出发，导出了六端口定标系数的自校正方程，并利用最优化方法对几种自校正算法进行了研究，进而从工程应用角度提出了一种新的介电常数测量方案．实验结果表明，这种方案是可行的、有效的，可望使六端口测量系统达到较高的自动化水平和较高的精度 Based on the six-port relative power theory, self-tuning equations of six-port calibration coefficients are derived and several self-tuning algorithms are studied by using optimization method. Then, a new dielectric constant measurement Program. The experimental results show that this scheme is feasible and effective, and it is hoped that the six-port measurement system can reach a higher level of automation and higher accuracy