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A Self-Consistent Extrapolation Method for the Complex Permittivity and Permeability Based on Finite Frequency Data

doi: 10.6062/jcis.2015.06.01.0091(Free PDF)


Christine C. Dantas, Mirabel. C. Rezende,and Simone S. Pinto


We describe a method of extrapolation based on a “truncated” Kramers-Kronig relation for the complex permittivity (\epsilon) and permeability (μ) parameters of a material, based on finite frequency data. Considering a few assumptions, such as the behavior of the loss tangent and the overall nature of corrections, the method is robust to within a few % of relative error, if the assumed hypotheses hold at the extrapolated frequency range.


Permeability, Kromers-Kronig relations, loss tangent.


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