Debye

A dispersive medium described by the Debye model. The frequency-dependence of the complex-valued permittivity is described by:

$\epsilon(f) = \epsilon_\infty + \sum_i\frac{\Delta\epsilon_i}{1 - jf\tau_i}$

Name

name: Optional unique name for medium.

Frequency Range

frequency_range: Optional range of validity for the medium.

Type: floating-point number

• Unit: Hz
• Constraint: greater than 0
• Default: None

Epsilon at Infinity

eps_inf: Relative permittivity at infinite frequency ($\epsilon_\infty$).

Type: floating-point number

• Unit: unitless
• Constraint: greater than or equal to 1
• Default: 1

Coefficients

coeffs: List of ($\Delta\epsilon_i, \tau_i$) values for model.

Required field

$\Delta\epsilon$: floating-point number

• Unit: Hz

$\tau$: floating-point number

• Unit: sec
• Constraint: greater than 0