Is it possible to apply an impenetrable sheet impedance in Feko?

Kyle Sibert

I'm attempting to apply an impenetrable sheet impedance in Feko.  I'm deriving the sheet impedance from the transmission/reflection characteristics of an arbitrary unit cell that lies on top of a ground plane.  Thus far, it appears that Feko's sheet impedance implementation allows for transmission, and I can't find an option to make it impenetrable.

Has anyone been able to successfully model an impenetrable sheet impedance in Feko?

Torben Voigt

Hi @Kyle Sibert ,

When applying an impedance sheet on a face of a dielectric region (e.g. Air) this warning will show up:

WARNING 32417: Transmission through a lossy metallic boundary of a dielectric body is not considered. Use the exact expression for finite conductivity to model this

Maybe this is worth trying?

Best regards,
Torben