FEKO - Point source expression

Massimiliano

Hello everyone,

I would need to know how FEKO defines the field expression of a point source.

For example, if I consider an electric source at the origin oriented according to z, I expect the following expression:

E_theta=j*k*Z*I*dl*sin(theta)/(4*pi)

By selecting I*dl=1 in FEKO I get a field amplitude different from the expression :

E_theta=j*k*Z*sin(theta)/(4*pi)

Does anyone know how FEKO defines the expression for the dipole?

Thank you !

Max

Torben Voigt

Hi Massimiliano,

To my understanding, the Electric Dipole Source in Feko is essentially a Hertzian dipole (also known as an ideal electric dipole). A Hertzian dipole is an infinitesimally small electric dipole described by a sinusoidally varying point charge and its opposition. It is a fundamental model for the radiation properties of antennas.

The calculation of far fields (and near fields) in Feko is based on the fundamental laws of electrodynamics, in particular Maxwell's equations.

Hope this helps!

Best regards,
Torben