DC-30 MHz射频电缆电磁屏蔽效能测量装置的研制  

Development of measuring device for electromagnetic shielding efficiency of DC-30 MHz radio frequency cable

作　　者：吴壮 左建生[1] 朱建刚[1] Wu Zhuang;Zuo Jiansheng;Zhu Jiangang(Shanghai Institute of Measurement and Testing Technology)

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2024年第1期56-58,共3页Shanghai Measurement and Testing

摘　　要：在对射频电缆工作原理研究的基础上,采用三同轴法,设计了一套频率范围从DC到30 MHz的射频电缆电磁屏蔽效能测量装置。通过仿真软件对信号传输过程中装置的端口、传输线与转接口之间的平滑过渡与衔接进行了优化处理设计,使得装置的远端反射系数达到了0.95以上。并对加工好的装置进行测试,测试结果与仿真结果进行了全面比较,一致性良好。In this paper,based on the research of the working principle of RF cable,a set of RF cable electromagnetic shielding efficiency measurement device with frequency range from DC to 30 MHz is designed by using triaxial method.Through the simulation software,the smooth transition and connection between the port,transmission line and transfer interface of the device are optimized,and the remote reflection coefficient of the device reaches more than 0.95.The finished device is tested,and the test results are compared with the simulation results,and the agreement is good.

关 键 词：射频电缆 屏蔽效能 三同轴法 反射系数 

分 类 号：TN03[电子电信—物理电子学]