Many EDA tools will export their DXF files with all boundaries being individual line segments. Gerber format requires all boundaries to be continuous and closed; so you must let ACE know to connect and Join all line segments. In addition, DXF does not support Islands/holes within boundaries, so you must also tell ACE to detect islands/holes within filled boundaries. I would suggest during DXF import to check the DXF import layer options "FILL", "JOIN". and "DE-EMBED" - also make sure you have told ACE the correct units of your DXF (because DXF does not have a setting which states the units used in your design).
Numerical Support Team
I tried a number of export formats from HFSS and alter the settings in the ACE3000 in different ways, but I cant get a correct conversion with the ACE3000. Like DXF to Gerber, GDSII to DXF, DXF to DXF, etc.
Do you have a specific example and/or experience from your customers that what export format from HFSS should be and what setting in the ACE3000 should be?