一、前言泄漏同轴电缆,又称辐射同轴电缆,是一种新发展起来的传输线,它通过在外导体上设置一定形式的槽孔来实现信号的泄漏作用。这种泄漏型馈线,实际上是一种连续型天线,同时起着传输线和天线的作用。在地下隧道、采矿坑道、建筑物内之类的特殊环境内,由于无线电波不能自由传播,此时必须利用泄漏同轴电缆来构成有线和无线相结合的新型通信系统,以实现稳定可靠的移动无线电通信。 I. Introduction Leakage coaxial cable, also known as radiation coaxial cable, is a newly developed transmission line. It achieves the signal leakage by providing a certain type of slot in the outer conductor. This leaky feeder, in fact, is a continuous type antenna that acts both as a transmission line and as an antenna. In the special circumstances such as underground tunnels, mining tunnels, buildings and the like, since radio waves can not be freely transmitted, a leaky coaxial cable must be used to form a wired and wireless new communication system for stable and reliable movement Radiocommunication.