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  3. Permittivity/Permeability Value and Loss Tangent

Permittivity/Permeability Value and Loss Tangent

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    • November 2, 2023 at 1:04 pm
      Jan Stoebe
      Subscriber

      Hi, 

       

      I am dealing with a very lossy magnetic material and I could not find out, what the Permeability value in the material definition in ANsys HFSS actually is. Is it the real part of the complex permeability/permittivity or the magnitude? (I am guessing, that it is the real part, but I would like to know for sure.) 

      Best regards and thanks in advance.

    • November 3, 2023 at 6:15 pm
      Faezeh Ladani
      Ansys Employee

      Hi Jan, 

      The Relative Permeability is the real part of the complex relative permeability. 

      Magntic loss tangent is the ratio of imag/real of the complex permbeality. Note that the sign of loss tangent should be positive to represent the loss. 

       

    • November 3, 2023 at 11:05 pm
      Jan Stoebe
      Subscriber

      Thanks a lot for the confirmation! :) 

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