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How to simulate not so great conductors in HFSS?

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    • Bill Perkins
      Subscriber

      I'm using HFSS to simulate and antenna. Everything works great if my ground and antenna materials have conductivity greater than 1x10^6 S/m. 


      Unfortunately, I'm working with a material whose conductivity is around 5x10^5 to 8x10^5 S/m.
      If I use a modal lumped port I get warnings that there are no conductors connected to the port, put the simulation runs.

      I'm unable to configure a terminal lumped port at all because there are no options displayed for the reference designation.


      How can I get HFSS to recognize my material as a conductor?

    • Aymen Mzoughi
      Ansys Employee

      To have HFSS recognize your material as a conductor, you can assign a finite conductivity to the material. This is done by selecting 'HFSS > Boundary > Assign > Finite Conductivity' in the HFSS GUI. You would then assign the finite conductivity boundary to the solid object representing your material. 

    • Bill Perkins
      Subscriber

      Thanks for the help Aymen.  My design is currently modeling a thin film as a two sided layered impedance. Would a finite conductivity properly account for thin film properties? My material is around 320-380 nm thick.

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