When designing custom planar antennas with pcbStack, default advice is for customers to define their own metal and dielectric layers and ensure a substrate definition exists to support fabrication.
pcbStack does not seem to have a documented Substrate argument (e.g. for assigning defined dielectric layers).
If I have a multi-layer dielectric comprising, say, 3 separate dielectric definitions d1, d2, d3, then how do I assign the composite dielectric to pcbStack?
Is it:
sub = d1+d2+d3;pcbStack.Substrate = sub;pcbStack.Layers = { metal d1 d2 d3 ground };
or just:
pcbStack.Layers = { metal d1 d2 d3 ground };
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