传输线多分支结构的阻抗匹配技术研究

Research on the Impedance Matching Technology of the Transmission Line with the Multiple Branch

阻抗匹配技术是高频电子电路设计的关键。因此,为了解决特殊结构传输线的阻抗匹配计算问题,该文在阐述传输线阻抗匹配的基本原理的基础上,给出了传输线多分支结构的基本特征。在深入分析了传输线多分支结构的信号传输特性的基础上,结合传输线零阶模型得到了多分支结构阻抗的匹配条件,并对比给出了仿真结果。该文还对传输线多分支结构模型中影响信号传输特性的主要因素进行了分析总结,进一步优化了传输线多分支结构阻抗匹配的解决方案。

Impedance matching technology is the key to designing high-frequency electronic circuits. Inorder to solve the problem of impedance matching of transmission lines with special structures, the basiccharacteristics of the transmission line with multi-branch structure are studied based on the principle of impedancematching of transmission lines, and signal transmission characteristics of transmission line with multi-branchstructure are analyzed in depth. Combined with the zero-order model of transmission line, the impedance matchingconditions of multi-branch structure are obtained, and the simulation results are given. This paper summarizes themain factors influencing the signal characteristics in the model. As well, it further optimizes the solution to theimpedance matching of the transmission line with multi-branch structure.