请教CST MWS 中mesh density control

看帮助文件，貌似是Lines per wavelength 的值越大，计算精度就越高？ 但看Lower mesh limit的解释感觉Lower mesh limit会限制lines per wavelength？
Lower mesh limit 中的mesh step （网格步长） 指什么也一直没搞懂。
在做split ring的仿真时很诡异，lines per wavelength取10，20， 30时，split ring的谐振频率竟然会有0.1左右的差别。 现在希望仿真得到的谐振频率与实际越接近越好，不知Lines per wavelength应该取多少为好？
仿真新人， 还望大家指教
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Lines per wavelength
The Lines per wavelength parameter describes the spatial sampling rate of the field. A Lines per wavelength setting of 10 means that a plane wave propagating along one of the coordinate axes is sampled at least 10 times. The reduction of the wavelength when propagating through dielectric materials is taken into account here.
 Lower mesh limit
This setting allows you to define the maximum mesh step to be used for the mesh creation, regardless of the setting in Lines per wavelength. The maximum step width of the mesh is determined by dividing the smallest face diagonal of the bounding box of the calculation domain by this number.

申明：网友回复良莠不齐，仅供参考。如需专业解答，请学习易迪拓培训专家讲授的CST视频培训教程。