基于对称反射件的混合模TRL校准算法  

Mixed-mode TRL algorithm based on symmetrical reflection standard

作　　者：万亮[1] 武建华[1] 苗俊刚[1] 何国瑜[1] 

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

出　　处：《北京航空航天大学学报》2009年第1期1-4,共4页Journal of Beijing University of Aeronautics and Astronautics

摘　　要：针对耦合差分器件的散射参数测量,提出了一种使用对称反射标准件的混合模式TRL(Through-Reflect-Line)校准算法.根据过渡结构的多模散射矩阵元素之间的相位关系和散射矩阵的广义互易性,消除符号模糊性并得到过渡结构的混合模式转移矩阵.该算法要求的校准标准件类似于传统的单模式TRL算法,不需要非对称结构的反射标准件产生模式转换项.利用全波仿真方法得到了包含过渡结构的校准标准件和待测件的单模散射矩阵,并使用该算法对仿真数据进行处理,得到不包含过渡结构的待测件的混合模散射矩阵.将校准结果与不包含过渡结构的待测件的全波仿真结果进行比较,其一致性表明了该算法可有效地校准线性平衡器件.A mixed-mode through-reflect-line （TRL） calibration algorithm based on symmetrical reflection standard was proposed to accurately characterize coupled differential devices using scattering parameters. Using the transition structure＇s generalized reciprocity and the phase relationship between its scattering matrix entries, the sign ambiguity was removed and the transition structure＇s mixed mode wave transfer matrix was obtained. The calibration standards of the proposed algorithm are similar to the requirement of traditional singlemode TRL algorithm, and unsymmetrical structured reflection standard is not necessary to yield mode conversion. To verify the proposed algorithm, the single-mode scattering matrix of calibration standards and deviceunder-test （DUT） , both of which are embedded with the transition structures, were calculated from full-wave electromagnetic simulation, and the proposed algorithm was used to process the simulation data to calculate the DUT＇s mixed-mode scattering matrix. The calibration results were compared with that from full-wave simulation, and the agreement of the data obtained through both approaches indicates that the proposed algorithm is valid to calibrate linear differential devices.

关 键 词：校准 差分器件 散射矩阵 共模 差模 广义互易性 

分 类 号：TM930.12[电气工程—电力电子与电力传动]