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在设计同轴电缆数字传输系统时,必须非常精确地计算下列一些基本传输参数:衰减α和相位β与频率之关系、波阻抗z、电磁能传播的相速度和群速度。这就不得不涉及到对宽频带下同轴电缆传输参数的计算,以及一些实验性的研究而要进行的大量工作。为此,应用电子计算机无论在缩短时间,还是在节省物力方面,都会收到颇为可观的效果。让我们假定电缆横截面的电磁过程是准静态,导体无偏心,不考虑同轴对扭绞影响及同轴对之间的相互影响,来研究分析一下应用电子计算机计算同轴对传输系数的结果。为了计算宽频带下同轴对的一次和二次
In designing a coaxial cable digital transmission system, some of the following basic transmission parameters must be calculated very accurately: attenuation α and phase β versus frequency, wave impedance z, electromagnetic phase velocity and group velocity. This has to do with a lot of work on the calculation of the coaxial cable transmission parameters over broadband as well as some experimental studies. For this reason, the application of electronic computers will have considerable impact both in terms of time reduction and in material resources saving. Let us assume that the electromagnetic cross-section of the cable is quasi-static, the conductor is not eccentric, and does not consider the influence of coaxial pairs on the twisting and the interaction between the coaxial pairs, to study and analyze the results calculated using coaxial computer coaxial transmission coefficient . In order to calculate coaxial and coaxial under a wide band