2 Oct
2017
2 Oct
'17
4:01 a.m.
Be careful in the wiggles if you make a high-frequency trace turn parallel to itself that those parallel sections are at least separated by a distance of 4*trace width=20mil. Otherwise the parallel sections look like antennae to the high-frequency signals which simply radiate straight across and bypass the intended delay path.
In other words if the edge of the copper of a trace faces a different part of the same trace, the electric field will overlap significantly if they aren't far enough apart and the signal will jump the gap.
I painted the likely problematic edges with red and circled in green the wiggle you created with a geometry that completely avoids the problem.
