本文从坐标变换观点出发,给出分析多层介质波导中电磁波传播和散射的一种新的技术。根据这种观点,多层介质波导中波的传播和散射可以归结为多维空间向量的坐标变换,并可用传输线和网络表示。这种方法的优点是,所得结果表示式简单,物理概念清楚,并便于数值计算。 In this paper, a new technique of analyzing electromagnetic wave propagation and scattering in multilayer dielectric waveguides is given from the perspective of coordinate transformation. According to this view, the wave propagation and scattering in multilayer dielectric waveguides can be attributed to the coordinate transformation of multidimensional space vectors and can be represented by transmission lines and networks. The advantage of this method is that the result of the expression is simple, the physical concept is clear and the numerical calculation is easy.