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Backfire antenna 0.265λfor bandwidth enhancement is proposed and investigated. The proposed antenna is fed by a 50 Ω coaxial feed. The bandwidth of proposed antenna for S and C band is investigated. The performance of backfire antenna is investigated by performing numerical calculation by using various mathematical formulas to determine necessary dimensions of the antenna and simulation by using commercially available Method of Moments software. Here we design proposed geometry for 3 GHz. Fordoi:10.1155/2014/560185 fatcat:rqewak2jt5bhzaxq5amr3rxgqe