个人通信业务和移动通信正在迅速增长.为了实现这些业务通用的广播覆盖,必须在屏蔽标准广播电磁波的大楼、隧道及其它建筑物内进行传输.新的通信业务的增长也将提高使用的频段数,并且需要更宽频段的通信能力.为了确保这些业务所需的通用的广播覆盖,必须采用能工作在微波频率的宽频带漏泄同轴(LCX)电缆. Personal communications services and mobile communications are rapidly growing, and in order to achieve a common coverage for these services, transmissions must be made in buildings, tunnels and other buildings that block standard broadcast electromagnetic waves. The growth of new communications services will also increase the number of frequency bands used , And requires a wider band of communications capabilities.To ensure universal broadcast coverage required for these services, Broadband Leaky Coax (LCX) cables that operate at microwave frequencies must be used.