Dual Band Horn Antenna Using Frequency Selective Surface Superstrate

The demand for high gain, multi band and reconfigurable type compact antennas are required for modern communication systems. In this paper, a unit cell design using U-shape with sequential rotations is presented to obtain dual passband frequency response. The unit cell design shows dual passband characteristics for the frequency range of 8-9.96 GHz and 11.53-14 GHz. In the complete high gain antenna design, 3x5 frequency selective surface array with X-band Horn antenna is demonstrated. The proposed reconfigurable frequency design has produced dual band impedance matching and a high gain of 13.09dB at 9.5GHz and 13.12dB at 12GHz, respectively. Most suitable applications for proposed antenna include communication systems requiring frequency selective, multi band and high gain antennas.