Designing PIFA antenna in Eagle

[vreg]

Hi,
I have been going through PCB antenna theory and want to design a PIFA antenna...
Can anyone provide an insight into how exactly you can do that in Eagle? Specifically considering "Figure 4. The Planar Inverted-F Antenna (PIFA)" on https://www.antenna-theory.com/antennas/patches/pifa.php

How do you draw the ground plane (as shown in the figure) and the feed and short circuit lines?

Can we just draw it using the Rect tool in Eagle for the ground plane and patch; And the feed and short circuit connections as simple wires going from top layer to bottom layer (something like vias)?

 

[volker@muehlhaus]

Yes, draw using rectangles and vias (or via fences).

You might also consider the truely planar version where the "F" is side by side with the ground, on the same layer.
The version shown here has an additional top loading with R||C that you would not use in your case.
https://muehlhaus.com/support/mwo-appnotes/awr_mwo_antenna_868_915

Another example of that planar F is shown here:
https://muehlhaus.com/support/mwo-appnotes/awr_mwo_antenna_simulation