# geoana.em.fdem.MagneticDipoleHalfSpace.wavenumber#

property MagneticDipoleHalfSpace.wavenumber#

Wavenumber for an electromagnetic planewave in a homogenous isotropic medium.

Where $$\sigma$$ is the electrical conductivity, $$\mu$$ is the magnetic permeability, $$\varepsilon$$ is the dielectric permittivity and $$\omega = 2\pi f$$ is the angular frequency, the wavenumber is:

$k = \sqrt{\omega^2 \mu \varepsilon - i \omega \mu \sigma}$

In the quasistatic regime, this expression simplifies to:

$k = \sqrt{-i \omega \mu \sigma}$
Returns
complex

Wavenumber for an electromagnetic planewave in a homogeneous isotropic medium. Returns the quasistatic approximation if the property quasistatic of the class instance is True.