Monopole antenna on a finite plate

Two differences with respect to the previous case :

Create a line with extremities at : (0 0 0) and (0 0 0.25)

Create a disk with :

or alternatively with the menu Geometry => Create = > Object => Circle

Enter the coordinates of the center : (0 0 0)

and the radius : 1

The obtained geometry :

Set the frequency to 300 MHz

Assign surface properties on the disk plate with :

Assign an antenna property to the wire (same default radius as in the previous example).

Define the voltage source at the first point (0 0 0)

Define a short-circuit as the same point using

Then Generate the Mesh, Save and Run Icare

The computed far field pattern :

and the computed input impedance :