A Novel Compact Ultra Wide-Band MSRDRA for X- and KU-BAND Applications

The proposed article presents a novel MSRDRA for ultra wideband applications in the domains of military and satellite communication operating in X and Ku frequency bands. The proposed design consists of a notched RDRA of FR4 with a high permittivity insert of Alumina together mounted inside the U-shaped Rogers 5880 segment. The excitation used to obtain the high gain along with UWB response is 50 Ω Coaxial feed. Consequently in the presented antenna structure the achieved impedance bandwidth is 130% with peak gain of 8.5 dBi obtained at 11.2 GHz. The radiation patterns are Omni directional in nature and the average radiation efficiency of 92.1% along the entire impedance bandwidth.