2.4    Dielectric Isotropic

Dielectric isotropic – is an isotropic dielectric medium. For this medium type:

Eps = e_r [dimensionless] – relative electric permittivity,

Mu = m_r [dimensionless] – relative magnetic permeability,

Sigma = s [S/m] - electric conductivity,

and

SigmaM = s_m/(k)⁴  = wm₀m_r“/(k)⁴ =wε₀m_r“ » wm₀m_r“/(120*π)²  [W/m] - magnetic loss

can be declared, where k is a dimensionless parameter, numerically equal to a square root of free space impedance expressed in ohms:

k = (μ₀/ε₀) ^0.25 » (120 p) ^0.5

and μ₀ and ε₀ are permeability and permittivity of vacuum.