【摘要】 任意形状天线罩物理光学算法中 ,需要将天线罩外形网格化 ,由于宽带天线罩工作带宽极宽 ,固定尺寸网格模型无法满足表面积分一致性收敛要求 ,特别是在高频端 ,在工作站的UG平台上也无法生成极细化网格。本文提出了一种自适应的网格细化技术 ,以低频网格为基础 ,随频率自动细化网格 ,实现了表面积分的一致性收敛 ,在保证精度的前提下 ,使计算时间最小化更多还原

【Abstract】 It is necessary to make grid of radome surface with arbitrary shape using the physics optics algorithm . Since the radome works in ultra-wide frequency band, the fixed size grid can’t meet the requirement of the convergence of the surface-integration. Especially in high frequency it is impossible for the workstation to generate the ultra-fine grid with UG software. In this paper, an adaptive grid technique is presented. Based on the grid at low frequency, the size of the grid can be varied with the frequency in order to realize the uniform convergence of the surface integration. This technique minimize the CPU time with a good accuracy .更多还原