Would these settings cause any trouble?

Lines per wavelength->220
Lower Mesh Limit -> 220
Mesh Line Ratio Limit -> 220

Meshcells=13192487

I wonder such setting would cause any trouble in MWS.

Hi,

these 3 parameters are high, but in particular the first and the second. It's strange that you need to have 220 as lines per wavelength->220! How is it possible?

Regards

I ve attached the structure. The simulation domain is rather small. And there are periodic boundary conditions in two directions. And one open boundary in one direction. What bothers me is that. When I use "consider for automesh" option with a 2 times or more refinement factor (for pec edges) for features I get a pretty unreasonable result. I ve turned off automesh option and rather I set a high lines per wavelength. Suprisingly, turning off the automesh option results in more reasonable results. I am quite puzzled over here.