This article elucidates a non-planar trifurcated wave scattering problem by considering incident wave through multiple regions of the underlying waveguide. The scattered field potentials in respective duct regions are obtained via mode-matching technique (MMT) thereby dealing with the non-planar surfaces and step discontinuities positively. The scattering effects are determined by allowing the incident wave from each region explicitly and then simultaneously. The distribution of energies subject to different choices of regions for incidents are presented to analyze the effects of varying regions of incidents. It is mentioned that obtained solutions are thoroughly validated thereby displaying the scattering characteristics graphically.

本文通过考虑穿过下面波导的多个区域的入射波，阐明了非平面三叉波散射问题。通过模式匹配技术（MMT）获得各个管道区域中的散射场电势，从而积极地应对非平面表面和台阶不连续性。通过明确允许每个区域的入射波然后同时允许入射波来确定散射效果。给出了针对事件区域的不同选择的能量分布，以分析事件的不同区域的影响。提到对获得的解决方案进行了充分验证，从而以图形方式显示了散射特性。