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

Kyle Sibert
Kyle Sibert New Altair Community Member
edited November 2023 in Community Q&A

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?

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Answers

  • Torben Voigt
    Torben Voigt
    Altair Employee
    edited November 2023

    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

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