AW & AE card

Can anyone go into more detail about the AW & AE card in FEKO? I have already look at a few examples.

Try reading the user manual their are some very good examples to follow

Added after 1 minutes:

You can find this in feko file manual 5 page 10-26, 10-21

? between regions with two labels: The excitation is placed on
the edge between the regions with labels specified in Label
on one side of edge and Label on second side of edge. The
positive source direction is towards the second side.
? connected to ground/UTD: Excite the edges of metallic triangles
with the label specified in the Label of triangles connected
to ground, which are connected to UTD surfaces or to
a PEC ground plane (as specified with a BO or GF card).
The positive feed direction is towards the UTD region or
ground plane.
? of microstrip between two points: This is a special microstrip
line feed. The excitation is placed on all edges on a line
between points (previously specified with DP cards). The
points are specified in the Start point of edge and End point
of edge dialogs. A GF card with a conducting ground must
be present. The positive source direction is from the triangles
towards the edge.