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Abstract
A cup-shaped double-sided UWB antenna for various communication systems is presented. The antenna has the total size of 22mm× 24mm, printed on FR4 1.6 mm thick substrate. This study presented a tapered-fed cup-shaped radiator with a modified ground plane. The semicircle slot etched in the radiator and the modified ground plane is used to improve the impedance matching. The appropriate combination of feed and slot shapes provides the wide operational bandwidth. The simulation results show that the presented prototype provided wideband from 2.8 to 11 GHz and has attained stable patterns with constant group delay.