摘要
波导传输线电磁参数测试中,测量参考面无法做到被测样片两端,从而会带来较大的测量误差。首先利用传输反射测量法和电磁参数反演算法,通过构建测试仿真模型,得出被测介质材料的磁导率与介电常数表达式。在此基础上,为了解决测量参考面问题,首先使用TRL校准算法,使散射参量S_(11)、S_(21)与理论值偏差下降12%、16%;为了解决嵌入误差问题,使用去嵌入算法,实现散射参量S_(11)与S_(21)的误差分别下降了18%、6%。仿真结果表明两种优化算法均可有效减小测量误差,提高了电磁参数测试精度。
In the process of electromagnetic parameters testing with waveguide transmission line,the measurement reference plane can not be at both ends of the material being measured,resulting in a large measurement deviation.The expression of permeability and permittivity of the measured dielectric material is obtained by constructing a test simulation model using transmission reflection measurement method and electromagnetic parameter inversion algorithm.On this basis,in order to solve the measurement reference plane problem,through-reflect-line(TRL)calibration algorithm is being proposed,as a result,TRL calibration algorithm reduce the deviation of scattering parameters S_(11) and S_(21) to 12%and 16%in theory.In order to solve the embedding deviation problem,the de-embedding algorithm is being proposed,and the de-embedding algorithm can reduce the deviation of scattering parameters S_(11) and S_(21) to 18%and 6%respectively.The simulation results show that the two optimization algorithms can effectively reduce the measurement deviation and improve the measurement accuracy of electromagnetic parameters.
作者
杨志良
江禹
李元浩
姚金杰
孙兴丽
Yang Zhiliang;Jiang Yu;Li Yuanhao;Yao Jinjie;Sun Xingli(Shanxi Provincial Key Laboratory of Information Detection and Processing,North University of China,Taiyuan 030051,China)
出处
《电子测量技术》
北大核心
2022年第4期179-184,共6页
Electronic Measurement Technology
基金
山西省青年科学基金(201901D211242)项目资助。
关键词
传输反射法
电磁参数测量
TRL校准
去嵌入
transmission reflection method
electromagnetic parameter measurement
TRL calibration
de-embedding
