SONNET: remove ground plane in dielectri layers

[beetro78]

sonnet ground plane

Does anybody knows how to remove the ground in the geometry of a SONNET LITE? I did not find it in the DIELECTRIC LAYERS dialog box, but it seems to be anyway present.

Thanks

 

[Joe_User]

To remove the bottom ground, you need to just move it a long ways away. If your real circuit has air under the substrate, then you should add an extra layer of air in sonnet to match the air you have in real life. If you add the extra layer of air, then I suggest you change the bottom of the box to free space.

Sonnet Lite limits you to only 3 dielectric layers so if you are already using all 3, then you can't add the extra layer of air without coughing up money to get the professional version.