How can I create a coplanar waveguide structure with a 0.2 clearance (gap) between the ground and the signal? I’ve set the net class for the signal, but the zone isn’t setting to 0.2 from either the ground or the signal
you have settings in the zone as well. Select it and hit “E”
The best way to do this is with custom DRC rules. But if your surrounding zone has to have a smaller clearance than your rule, otherwise it won’t work.
(version 1)
(rule “CPWG Clearance”
(condition “A.NetClass == ‘Signal’ && B.NetClass == ‘GND’”)
(constraint clearance (min 0.2mm))
)
I attempted to use this, but it didn’t work
Select your surrounding GND zone and your trace and then hit Inspect → Clearance Resolution. This will show you which clearance rule applies. I think maybe the clearance of your GND zone is set higher than 0.2mm.
1 Like
And have you measured your gap? What size is it?
Thank you for your time. The issue was with the design rule I wrote, but I’ve fixed it, and the design is now correct