A note on the modeling of transmission-line losses
A note on the modeling of transmission-line losses
复制标题
关于传输线损耗建模的说明
DOI：
10.1109/tmtt.2002.807825
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发表时间：
2003
影响因子：
4.3
通讯作者：
Truc Hoang
中科院分区：
文献类型：
--
作者：
A. Djordjević;A. Zajić;D. Tosic;Truc Hoang
我们考虑均匀损耗传输线的主要参数。精确和近似公式的特性阻抗和传播系数的审查和讨论的低损耗线。用特性阻抗的真实的部分来近似特性阻抗，可能会导致短路和开路短截线输入阻抗的错误结果。这个问题的分析证明了电短桩。使用精确和近似的表达式得到的结果进行比较，由各种电路仿真软件产生的数值解。
We consider uniform lossy transmission lines characterized by their primary parameters. Exact and approximate formulas for the characteristic impedance and propagation coefficient are reviewed and discussed for low-loss lines. Approximating the characteristic impedance by its real part can lead to erroneous results for the input impedance of short- and open-circuited stubs. This problem is analytically demonstrated on electrically short stubs. Results obtained using the exact and approximate expressions are compared with numerical solutions that are generated by various circuit simulation software.