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所谓漏泄同轴电缆,就是在同轴电缆外导体上开一系列槽的一种电缆,如果把几百兆赫的无线电信号输入给这种电缆,电波就从槽中漏泄出来,沿电缆的周围形成电波的分布,如果与沿电缆运动的移动体进行通信,这种电缆就成为非常好的无线信号的传送媒介体。现在,漏泄同轴电缆在新干线首先采用的列车无线系统中,成为不可缺少的部分。由于其性能是宽频带的,而且稳定性好;因为是电缆状,布设工程容易;几乎无须维护等优点,近年来,在大厦、地下街道内无线电联络、公路隧道无线电通讯或无塞绳电话系统等方面均打算采用漏泄同轴电缆。并且,在将来也考虑应用在移动体控制用的数据传输系统以及映象情报传输系统等方面,而且还可能出现利用其功能和特性的各种新型通信系统。
A so-called leaky coaxial cable is a type of cable that runs a series of slots in the outer conductor of a coaxial cable. If a few hundred megahertz of radio signal is input to such a cable, radio waves leak out of the slot and form around the cable The distribution of radio waves, if communicating with a moving body that moves along a cable, becomes a very good medium for transmitting wireless signals. Leaky coaxial cables are now an integral part of the train radio system first used on the Shinkansen. Because of its performance is broadband, and good stability; because of the cable, the laying of the project easy; almost no need to maintain, etc. In recent years, in buildings, underground streets within the radio contact, highway tunnel radio or cordless telephone system In terms of the intention to adopt leaky coaxial cable. In the future, it is also considered to be applied to a data transmission system for controlling a moving body, a map information transmission system, and the like, and various new communication systems that utilize their functions and features may also appear.