漏泄同轴电缆链路损耗常数的定义及其应用  

Definition and Application of Link Loss Constant of Leaky Coaxial Cable

作　　者：李庆和 卫伟 吴超 LI Qinghe;WEI Wei;WU Chao(Expert Committee of China Communication Optical&Electric Cable,Shanghai 201900,China;Jiangsu Hengxin Technology Co.Ltd.,Yixing 214222,Jiangsu,China)

机构地区：[1]中国通信光电缆专家委员会,上海201900 [2]江苏亨鑫科技有限公司,江苏宜兴214222

出　　处：《光纤与电缆及其应用技术》2023年第4期32-34,44,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：漏泄同轴电缆(漏缆)是一组裂缝天线阵,其辐射的信号功率电平值(链路损耗)是漏缆的重要指标,可以此评估漏缆的最长传输距离。链路损耗常数为沿漏缆长度方向某处天线接收的功率电平实测(散点)值拟合的直线斜率,能够更为全面综合地反映漏缆的链路损耗特性,这已获得各型漏缆试样链路损耗常数实测结果印证。相较于已有以传输衰减常数与耦合损耗为依据的链路损耗计算方式,采用链路损耗常数进行链路损耗计算更具合理性。链路损耗常数在漏缆工程设计及制造中将会是一个实用简便的参考指标。The leaky coaxial cable is a group of slotted antenna arrays.Its radiated signal power level(link loss) is an important index of leaky cable,which can be used to evaluate the longest transmission distance of leaky cable.The link loss constant is the line's slope fitting the measured(scatter) value of the power level received by the antenna at a certain point along the length of the leaky cable.The link loss constant can more comprehensively reflect the link loss characteristics of leaky cable,which has been confirmed by the measured results of link loss constants of various types of leaky cable samples.Compared with the existing link loss calculation methods based on transmission attenuation constant and coupling loss,it is more reasonable to use link loss constant to calculate link loss.The link loss constant will be a practical and simple reference index in the engineering design and manufacture of leaky cable.

关 键 词：漏泄同轴电缆 链路损耗 信号功率电平 链路损耗常数 传输衰减常数 耦合损耗 

分 类 号：TM248[一般工业技术—材料科学与工程]