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一、概述漏泄同轴电缆是在同轴外导体上周期性地设置辐射电磁波用的狭长槽孔的新型传输线。漏泄同轴电缆以有线和无线相结合的通信方式,广泛应用于隧道、地下铁道等无线电波传播受阻碍的场合。在漏泄同轴通信系统中,固定台与移动体之间的信息交换是通过漏泄槽孔辐射出来的电磁波进行的。随着传输距离的延长,由于电缆的传输衰减致使辐射电平越来越小,当辐射波的强度低于
I. Overview Leaky coaxial cable is a new type of transmission line with long and narrow slot for periodically setting radiation electromagnetic wave on coaxial outer conductor. Leakage coaxial cable is a combination of wired and wireless communications, widely used in tunnels, underground railways and other radio waves impede the occasion. In a leaky coaxial communication system, the exchange of information between the stationary station and the moving body is performed by electromagnetic waves radiated from the leaked slots. With the extension of the transmission distance, due to transmission attenuation of the cable so that the radiation level is getting smaller and smaller, when the intensity of the radiation wave is less than