用平面电磁波分析大电流矩形母线中电流密度的分布

本文是把从大电流矩形母线的四周往导体内传播的电磁波，近似地看成平面电磁波．其中一对 平面电磁波从母线的左右两侧往内传播，另一对平面电磁波，则由上下两侧面往内传播．两对平 面电磁波中的电波在导体内相叠加的结果，能得到合成的电场强度沿着矩形母线截面的分布，因 而就能找到电流密度的分布规律．

THE USE OF ELECTROMAGNETIC PLANE WAVES TO ANALYSE THE CURRENT DENSITY DISTRIBUTION IN THE STRONG CURRENT RECTANGULAR BUS

This treatise regards the electromagnetic waves, which propagate from surrounding surfaces of rectangular bus into its conductor, approximately a eletromagnetic plane waves. Among them, one pair of the electromagneti plane waves propagates into the conductor from the left and right sides of the bus, while another pair of the waves propagates from the upper and lowe sides of the bus. The result of the superposition of the electrical waves of the two pairs electrcomagnetic waves in the conductor enables us to obtain the total electric field intensity that is distributed in the section of the rect angular bus,and thus to find out the principle of the distribution of curren density.