摘要
随着现代电子信息技术的发展,如何提升各种微波非插入器部件的网络特性测量精度是长期以来工程师面临的挑战之一。矢量网络分析仪未知直通校准技术采用SOLT校准和TRL校准相结合的方法,实现了非插入器件直接在校准面进行高精度测量。简要对比了传统测试方法优缺点,给出未知直通校准模型、校准过程和具体技术应用。实验结果表明,该技术能够很好地解决未知直通部件S参数测量难题,可以去除传统方法中使用外加适配器引入的各项测量误差,并且不要求校准直通件特性已知,可有效提高测试精度并具有极大应用灵活性。
With the development of modern electron and information technology, the problem of how to improve the measurement accuracy of S-parameters of non-insertion devices has beoame more and more important for microwave engi- neers. Unknown through calibration technique of VNA is forming by combination SOLT method and TRL method, by which non-insertion devices can be measured high-precisionly at calibration plane. After comparing the advantages and disadvantages of conventional method, the model, the calibration process and the application of unknown though tech- nique are given. Experimental results show that the method can solve the problem effectively, can remove the measure- ment errors of external adapter even the real characters of the adapter being unknown, can improve the measuring accu- racy with good flexibility.
出处
《国外电子测量技术》
2017年第4期71-75,共5页
Foreign Electronic Measurement Technology
基金
国家自然科学基金应急管理项目(61640601)资助
关键词
矢量网络分析仪
非插入器件
未知直通校准
vector network analyzer（VNA）
non-insertion devices
unknown through technique
