Flat antennas that are generally made of metal plate or foil and embedded in a label or other material. They are configured in a patch-type format and physically in the shape of a square or rectangle. Flat panel antennas are quite directional as they have most of their power radiated in one direction in both the vertical and horizontal planes.
URL: http://www.aerocomm.com/docs/Antenna_Tutorial.pdf
URL: http://www.aerocomm.com/docs/Antenna_Tutorial.pdf
