错误求助 Port refinement, process abc3d : The frequency specified for this problem is too low.

[error] Port refinement, process abc3d : The frequency specified for this problem is too low.  The solution may not be converged.  Check the frequency and the material properties for this problem.
请高手指点！不胜感激！

提示不是很明确么?频率太低。检查一下频率设置吧