均匀同轴电缆的瞬态响应的研究

THE TRANSIENT RESPONSE OF UNIFORM COAXIAL CABLES TERMINATED IN VARIOUS IMPEDANCES

摘要: <正> 一、前言均匀同轴电缆因其优良性能在现代测量技术中获得了广泛的应用。早期是研究正弦电信号的传输,寻求电缆传输特性的稳态解。近来,需测诸如亚微秒宽度、纳秒变化沿的单次脉冲,则要研究其瞬态解,目前已有若干研究结果。巴纳研究理想同轴电缆端接失配电阻的传输特性,得阶跃响应的解析解。Zaengle则研究端接混合元件的情况,给出了阶跃响应的计算机解,而非解析解。Wigington研究了低损电缆匹配端接时的传输特性的解析解。

Abstract: The generalized transfer function of the uniform coaxial cables terminatedin various impedances is derived. The analytical solutions for the transient respo-nse of the cables corresponding with three terminated conditions are obtained.By means of the computer, the corresponding waveforms are given.