Effect of FSS structure on planar patch antenna

A simple microstrip patch antenna was first used to study and its resonant frequency and bandwidth were observed. Based on the observations a Frequency Selective Surface (FSS) is proposed to improve the bandwidth, antenna gain and return losses of a patch antenna. Fabricated results of the return losses, radiation pattern and antenna gain of this patch antenna are also presented. Through the Fabricated results it has been proven that the microstrip antenna implanted with an FSS structure containing fractal cross elements has been converted into an antenna with good performance along with sufficient bandwidth and higher gain.