Modified Array of Circular Patch Antenna for 5.9 GHz WLAN Application

In this paper the design and the study of the circular patch antenna is being proposed by using the HFSS (High frequency structure stimulator) software. Patch and substrate will play the vital role in the performance of the proposed antenna. The circular patches are on the top of the substrate. Dimensions and material of the substrate has an influence on the output parameters of the antenna. Analysis is done to demonstrate the output parameters i.e., the return loss, VSWR, gain total, s-parameter, polar-plot & radiation patterns. The modification and feeding have been completed by using the cylindrical probe which provides the better resonating frequency.