The wireless communication is not possible without antennas. Some of the antennas
are: parabolic reflectors, horn antennas, helical antennas, log periodic antennas,
monopole antennas, dipole antennas, loop antennas, folded dipole antennas,
yagi-uda antennas and finally patch antennas Balanis (2005). Each antenna has its own
design and advantage. Microstrip antennas concept was first proposed by Deschamps
in 1953 and first radiator was developed by Bob Munson in 1971. Microstrip patch
antenna design is very easy compared to other antennas and operation is also simple.
The basic advantage in microstrip patch antenna is low profile. The microstrip patch
antenna can be easily integrated with other microwave circuits Sainati (1996).
Generally, microstrip patch antenna consists of a radiating patch and ground plate
on the dielectric substrate. The radiating patch and feed lines are photo-etched on
the dielectric substrate.