Dual Band Symmetrical Semi Cylindrical DRA with Patch Antenna for C and X-Band Applications

In this paper two element symmetrical semi cylindrical DRA are placed on the top of the patches with symmetrical in shape of semi-circle patch elements. This antenna is operating in Multiple frequencies with good impedance matching. The DRA antenna is operating at 6.3GHz, 6.9GHz, 8.1GHz and 9.2GHz with S-Parameters -19.61dB, -2253dB, -19.71dB and -19.91dB. The band width at two bands are 1.08GHz and 1.8GHz in X-Band applications.