CST simulation for Conductivity and Complex Permittivity

Hi All,

I am trying to simulate a substrate in CST with antenna on top of the substrate with no ground plane. And the substrate is a lossy anisotropic material which has both conductivity and complex permittivity.

I am using CST to define complex permittivity using tensor macro, but if I use this macro I cannot define conductivity. I have tried loss tangent and obtain conductivity from this but the simulation is not accurate.

Has anyone use CST to define complex permittivity and conductivity as the same time.

Please help with this problem.

Brgds
Manimaran

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