摘要
互连电缆通常是通信、电力、电子等系统中电磁兼容性能较为薄弱的环节,研究其对外部环境电磁场的耦合机理,对于系统电磁防护及电磁兼容分析有着重要意义;采用Agrawal模型对场线耦合进行了分析,给出了外部电磁场对有限长平行双线耦合的感应电流与散射电压频域计算公式,同时应用该方法分析了线缆长度、线间距、电导率、外场入射角等参数对场线耦合的影响;仿真与试验验证结果表明了方法的有效性,对工程实践和电磁兼容研究具有指导意义。
Since interconnect cables is the weakest link of the electromagnet compatibility in the communication , electrical power and electronic systems , the study on its coupling mechanism is of important application value for system protection and I~.MC analysis of electro- magnetic interference （EMI）. Agrawal model is proposed to analyze the field--to--transmission line Coupling, the formulas of induced cur- rent and scattered voltage in frequency domain of the parallel double lines with finite length are presented, excited by external electromagnetic field. With this method , the influences of the cable length , distance between lines , conductivity and external field incident angle on the field--to--transmission line coupling is analyzed, The validity of the method has been proved by simulation and experiment, which has guiding significance for engineering practice .
出处
《计算机测量与控制》
CSCD
北大核心
2009年第11期2229-2231,2283,共4页
Computer Measurement &Control
基金
国防科技工业基础科研基金项目(H142006A001)
关键词
电磁兼容
平行双线
场线耦合
EMC
two parallel lines
field-- to-- transmission line coupling
