volker@muehlhaus, I see. Can you recommend any software that I could use as EM solver? Is it a difficult procedure to test a layout?
I have used AppCAD to verify that 40 mil (width) and 8 mil (gap) numbers are correct. Are those calculations relevant only for the straight trace? If I decide to go with a regular trace (2nd picture in my first post) that has 45 degree bends, do I still need to use EM solver to get accurate calculations?
Btw, I use CPW with groundplane.