基于场积分方程的机箱耦合电流特性的数值分析  

Numerical Simulation on Enclosure Joint- point Current Coupling Characteristics base on Electric Field Integral Equation

作　　者：高璞[1] 王飞[1] 郝建红[1] 高永华[2] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]石家庄学院,河北石家庄050035

出　　处：《电子质量》2010年第5期77-80,共4页Electronics Quality

摘　　要：各种电子电器设备都有外接导线,例如通讯线、信号线、电源线等。虽然电子电器设备本身可以通过屏蔽体抵御外部的电磁干扰,但是外部的电磁干扰仍然可以通过暴露在屏蔽体外的导线直接将电磁能量耦合到蔽体内部,使屏蔽体内的电磁环境变得更加复杂。文章依据边界条件推导出电磁场积分方程,并通过矩量法计算了导线与机箱外壳连接点的感应电流强度,在导线的半径、入射电场的极化方向和导线间距等各种因素影响下,通过理论得出模拟曲线,发现耦合电流随频率的一些变化规律。The interference of external electromagnetic fields can be directly exposed to electromagnetic energy coupled to the external wire, and through the wires coupled to the enclosure＇s internal ,so that the electromagnetic environment has become more complex. In this paper, using the method of moment to calculate the amount of wire- to- enclosure joint- point induced current intensity, under the influence of the wire radius and the incident polarization direction of the electric field and so on, analyzing current intensity with the frequency pattern and obtaining some simulation curves.

关 键 词：矩量法 电场积分方程 耦合电流 

分 类 号：TN03[电子电信—物理电子学]