HFSS15: Incident Waves

An incident field is the electromagnetic field in the absence of any scatterers. We suppose that the incident field is present everywhere and it comes from a source residing in some location. The source can even be another HFSS project or an SIwave project.

Incident waves can be of the following types:

• Plane Wave

• Hertzian-Dipole Wave

• Cylindrical Wave

• Gaussian Beam

• Linear Antenna Wave

• Far Field Wave

• Near Field Wave

For incident analytical waves (plane waves through linear antenna waves) HFSS supports two basic methods: scattered field formulation and total field formulation.

Etotal = Eincident + Escattered

The total field formulation is useful for viewing weak total fields while scattered field formulation is useful for viewing weak scattered fields.

For near field and far field waves we are merely specifying the fields on the radiation surfaces. So, we cannot view only the total fields.