Design comparison: Trace alone / Trace plus reference³Ô¹Ïtv / ENGINEERING EXPLANATIONDesign comparison: Trace alone / Trace plus referenceTrace aloneTrace plus referenceA line drawing hides thereturn conductor.Model the full electromagneticstructure.Compare at a consistent boundary; confirm the actual construction.Conceptual illustration, not field simulation, production artwork or test evidence.