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一种基于10项误差模型的二端口矢量网络分析仪校准方法 被引量:13

A Calibration Procedure for Two-Port Vector Network Analyzer Based on 10-Term Error Model
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摘要 在三通道二端口矢量网络分析仪(Vector Network Analyzer,VNA)的校准过程中,引入长度未知的50欧姆传输线段作为校准件代替常见的短路-开路-匹配-直通(Short-Open-Load-Thru,SOLT)校准算法中的匹配校准件,减少了校准件数量且不需要已知校准件的全部特性,不仅降低了测试成本,同时简化了测试步骤.通过这种校准算法不必计算各个系统误差项的大小,待测件(Device Under Test,DUT)的散射矩阵直接由校准和测试过程中的散射参数测量值表示得到.最后,利用此方法计算二端口待测件的真实散射参数,并与SOLT算法进行对比,其结果吻合良好. In the calibration procedure for two-port vector network analyzer(VNA) with three measurement channels,the length-unknown 50 ohm line is used in short-open-load-thru(SOLT) calibration algorithm instead of Load standard.It is aimed to decrease the measurement cost and simplify the measurement process.Via this calibration procedure,the systematic error terms are not required and the accurate scattering parameters of a two-port device under test(DUT) can be obtained by the measured scattering parameters during the calibration and measurement procedure.Experimental verification was carried out through SOLT method,and excellent agreement is observed.
出处 《电子学报》 EI CAS CSCD 北大核心 2011年第10期2469-2472,共4页 Acta Electronica Sinica
基金 国家自然科学基金(No.60871008) 江苏省普通高校研究生科研创新计划(No.CX09B-079Z)
关键词 矢量网络分析仪 校准 误差模型 散射参数 vector network analyzer calibration error model scattering parameters
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