Eigenmode simulation problem when frequency dependent material is added

Hi all,

I have a simple vacuum cavity with a small absorber at one of its sides. The problem is that when I define the material of the absorber as a frequency dependent material, the eigenmode simulation does not converge and stops with execution error.

Note that I used for "tab" files to define the permittivity, tan d, permeability & magnetic loss tangent of the corresponding material.

Thanks a lot for your help!!


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