{"id":432628,"date":"2025-05-27T10:31:28","date_gmt":"2025-05-27T10:31:28","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumerical-eme-solver\/"},"modified":"2025-05-27T10:31:28","modified_gmt":"2025-05-27T10:31:28","slug":"lumerical-eme-solver","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumerical-eme-solver\/","title":{"rendered":"Lumerical EME solver"},"content":{"rendered":"

<p data-pm-slice=”1 1 []”>Hi,<\/p><p data-pm-slice=”1 1 []”>I have designed a 1×2 splitter using the EME solver and attached a screenshot. I’m having trouble determining the appropriate dimensions for the ports. Could you provide guidance on what I should consider when choosing these dimensions? Additionally, I’m unsure about using the “use full simulation span” option. When this option is checked, it seems the ports automatically extend to match the EME simulation region, as shown in the screenshot. However, when I manually set different x-span and z-span values for the port, the resulting S-parameter values change. Is this expected behavior? Also, when using the “use full simulation span” option, the S-parameters (Abs^2 values) for S21 and S31 both yield 0.9834. I’m not entirely sure how accurate or reliable these results are. Could you provide any insight into this? I would greatly appreciate any clarification or best practices on setting port spans to ensure accurate simulation results. <\/p><p data-pm-slice=”1 1 []”><\/p><p data-pm-slice=”1 1 []”> <\/p><p data-pm-slice=”1 1 []”><\/p><p data-pm-slice=”1 1 []”><\/p><\/p>\n","protected":false},"template":"","class_list":["post-432628","topic","type-topic","status-publish","hentry","topic-tag-lumerical","topic-tag-LumericalEME-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t