International Journal of Computer Science and Mobile Computing (IJCSMC)
The microstrip patch antennas are widely used in WLAN applications because of its features like low-profile, compactness and high efficiency. A microstrip patch antenna is most often a 1/2 wavelength structure although it can also be made as a 1/4 wave element. The patch antennas are printed on the top surface a 2-layer PCB, although sheet metal patches over a ground plane with an air-dielectric are also in wide use. Modern wireless and mobile communication systems requires antenna which should have light weight, low profile, low cost, and easy to be integrated with RF devices. This demand is completed by microstrip antennas.