Antenna is an
electronic device which converts electrical power in to electromagnetic energy.
Antenna radiates electromagnetic signals in all directions by adopting
different types of feeding techniques. Microstrip antennas are widely used in
wireless communication systems for microwave frequency range because they can
be easily fabricated and weighs less . Micro strip patch antennas include
reduced weight, easy fabrication, conformability to mounting hosts and
bandwidth enhancement. Conventional micro strip patch antenna suffers from very
narrow bandwidth, which is typically about 5% bandwidth with respect to the
center frequency, low power, and excitation of surface waves and relatively
high level of cross polarization radiation which limits their applications.
Researchers have developed a number of numerical methods to ease the design
procedures of micro strip antennas to meet broadband criteria .
In the present work design and analysis of micro
strip patch antenna at 5 GHz has done whose width is 23mm and length 19mm and
thickness of 0.0415mm.In this antenna design different width of the arm of
patch antenna is analyzed to study on the performance of frequency resonance. From
the analysis, the wider the width will lower the resonance frequency of the
antenna. Large Micro strip array antennas in both linear and planar array
systems are designed in the present work. which are used in WLAN applications,
Navigation systems. The results are compared with the isotropic antenna array
system which is obtained with good agreement.