功率吸收钳法测量网络电缆的耦合衰减  

Measurement of Network Cable Coupling Attenuation Based on Absorbing Clamp Method

作　　者：韦守龙[1] 周忠元[1] 

机构地区：[1]东南大学电磁兼容研究室,江苏南京210096

出　　处：《电子机械工程》2009年第5期12-15,共4页Electro-Mechanical Engineering

摘　　要：随着网络电缆使用频率的提高,网络电缆的耦合衰减越来越重要,使用功率吸收钳法测量网络电缆的耦合衰减时,绞线对需要通过平衡不平衡变换器与网络分析仪连接,绞线对的端接匹配负载不易连接,测量结果更易受到元器件性能以及元器件连接好坏的影响。依据标准EN50289-1-6:2002构建了功率吸收钳法测量系统,验证了测量系统可靠。并对屏蔽六类线、非屏蔽超五类线和非屏蔽五类线的耦合衰减进行了实测。Coupling attenuation of network cable is becoming more and more important as the used frequency is increased. When using absorbing clamp method to measure the coupling attenuation of the network cable, the network cable is connected to the VNA by balun, so it is not easy for the network cable to be connected to the load, and the measure ment result is influenced by the characteristics of the component. This paper designed an absorbing clamp method measurement system, validated its system reliability, measured the coupling attenuation of screening category 6 ,unscreening category 5e and unscreening category 5.

关 键 词：耦合衰减 功率吸收钳 平衡不平衡变换 

分 类 号：TN913.8[电子电信—通信与信息系统]