Effect of Different Types of Substrate in Designing of an Inset Feed Patch Antenna for WLAN Application

In the last two decades the study of microstrip patch antennas has made great progress. Microstrip patch antennas have larger benefits and higher prospects compared with conventional antennas. Various types of dielectric substrates have been used by different researchers to construct microstrip patch antennas. They have used different types of dielectric substrates to fabricate microstrip patch antenna. Therefore, a question arises that which dielectric substrate among the common substrates available gives better performance. So, if the designer has a clear conception about the effect of changing substrate material on the performance of microstrip patch antenna, it will become easier to design an antenna for any application. This paper represents that how performance of an inset feed microstrip patch antenna changes with respect to change in substrate material. A comparative study has been performed to know the dielectric properties of three different substrates which affect antenna performance. The reference frequency 2.4 GHz (ISM band) and height of the dielectric substrate 1.5mm taken to design inset feed microstrip patch antenna.