Antenna Loaded with Metamaterial for WiMAX 3.5GHz band

The paper presented here is a metamaterial based split ring resonator antenna working for WiMAX application. The paper also compares different antennas design with proposed structure which is designed to resonate around 3.4GHz. The resonator has a part of ground plane and is excited by waveguide ports along x-directions. The proposed metamaterial antenna is printed on a
$30\times 23\times 1.5\ \text{mm}^{3}$
Rogers 5880RT substrate. The substrate has a relative permittivity of 2.3 and a loss tangent 0.0009. Resonator rings and ground frame are on the same side whereas feedline is on the other side of substrate. A unit cell is presented which achieves the properties of metamaterial. For the proposed design, the return loss, gain, permeability and permittivity, E and H plane radiation pattern values are obtained.