Design of Compact U - Slot Circular Patch Antenna on RT DUROID 5880 Substrate

This paper presents design and analysis of compact wire edge fed U-shape slot antenna. The proposed antenna has simple structure consisting U-shape slot on a circular patch of radious 13.1mm.The patch is designed on circular shape RTD substrate material of radious 13.2mm,with height of 5mm and whose permittivity is 2.2.By using only single patch a high impedance bandwidth is achieved. Simulated results shows that the return loss is 16.15dB at the center frequency of exactly 3.282GHz and the simulated impedance bandwidth (VSWR<2) is 24% .The antenna is designed and simulated using CONCERTO software and theoretical results gives good agreement with simulated results. Return loss 2D,3D gain, E and H Field distributions, pointing vector, polar plots,FD probe results, Electric and magnetic energy distribution, and quality factor are simulated for the proposed designed antenna was presented.