均匀平面波在无损耗媒质中传播时，平面波的电场与磁场的振幅之比等于媒质的本征阻抗，在理想介质中，阻抗为一正实数。因为电场、磁场方向始终不变，根据它们的值，利用MATLAB提供的实现动态轨迹.-Uniform plane wave propagation in the lossless medium, the plane wave of electric and magnetic fields is equal to the ratio of the amplitude of the intrins