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DISPFIT
Calculators Modules

DISPFIT

Dispersive fitting tool based on genetic algorithm (GA) optimization.

Layout of the DISPFIT tool.

Product description

GA-based optimization tool to obtain parameters for the different dispersive models (Debye, Lorentz, Drude, and the combination of Drude-Lorentz) for a given material (user-defined or imported from a text file).

 

 

Features

  • Initial data can be loaded from text file or specified directly by the user
  • Load IT’IS material database
  • Specify initial and final frequency and number of samples
  • Specify target error, maximum search time and number of poles
  • Graphic representation of initial data and proposed fitting curves superimposed
  • X-axis can display frequency or wavelength
  • Y-axis can display Conductivity or Imaginary part of Permittivity
  • Best fit can be copied directly into simulation settings

 

Applications

  • Obtain frequency dependent material parameters for wideband simulations