A Pattern-Recognition-Based Mesh Refinement Method for the Moment Method Analysis of Electromagnetic Scattering Problems
A Pattern-Recognition-Based Mesh Refinement Method for the Moment Method Analysis of Electromagnetic Scattering Problems
复制标题
DOI：
10.1109/ap-s/usnc-ursi47032.2022.9886168
复制
发表时间：
2022-07
期刊：
影响因子：
--
通讯作者：
Christian Díaz-Cáez;S. Yan
中科院分区：
文献类型：
--
作者：
Christian Díaz-Cáez;S. Yan
描述感应表面电流的幅度分布和行波相位变化的基函数已成功应用于大片上。尽管此类基函数可以为光滑和凸面物体生成准确的结果，但它们无法准确描述具有非光滑和/或凹面的物体上的电流分布。在这项工作中，基于当前的模式识别技术开发了一种非均匀网格细化方法，以更准确地描述驻波分布。非均匀网格上的模拟结果实现了更好的精度和更低的总体计算成本。
Basis functions that describe both the amplitude distribution and the traveling wave phase variation of the induced surface current have been successfully applied over large patches. Although such basis functions generate accurate results for smooth and convex objects, they cannot describe accurately the current distribution on objects with non-smooth and/or concave surfaces. In this work, a nonuniform mesh refinement method is developed based on a current pattern recognition technique to describe standing wave distributions more accurately. The simulation results on the nonuniform mesh grids achieve a much better accuracy and a lower overall computational cost.