AB Card

This card is used to create a FEM modal excitation, which is the fundamental mode of the associated, infinitely long guided wave structure of the modal port.

On the Source/Load tab, in the Sources on geometry group, click the  Modal source (AB) icon.



Figure 1. The AB - Modal port excitation dialog.

Parameters:

New source
A new excitation is defined which replaces all previously defined excitations.
Add to sources
A new excitation is defined which is added to the previously defined excitations.
Name of the modal port
Label of the modal port.
Magnitude of impressed mode (V/m)
Magnitude of the impressed mode in V/m.
Note: If left empty or set to 0 then the modal port will act as a passive (sink) port for fields incident on the port.
Phase (degrees)
Phase of the impressed mode in degrees.