Novel circular antenna with elliptical rings for ultra-wide-band

This Novel antenna consists mainly of conducting Circular patch with elliptical rings and partial conducting ground plane, with dimensions of 45 mm×31 mm×1.27 mm, Rogers 5880 LZ is selected as a substrate. The impedance bandwidth of the designed antenna is between 3.5 GHz to 9 GHz. The selected partial ground length is 11 mm. VSWR and S11 are obtained for the new antenna through HFSS simulation for different ground plane lengths. Antenna group delay, maximum antenna gain and radiation pattern for this novel antenna are studied and analyzed. The presented antenna achieved the desired BW and the simulated S11 and VSWR are coherent and show unique performance.