Design & implementation of reduced size microstrip patch antenna with metamaterial defected ground plane

The size reduction of microstrip antennas is becoming an important design consideration with development of communication with integration Technology now days. This paper proposes microstrip Patch antenna in which metamaterial properties applied at ground Plane. The paper also analyzed the performance of Microstrip Patch Antenna with and without using the metamaterial structure. The works mainly include Metamaterial as Defected ground plane. Unit cell of split ring resonator (which is used for defected the ground) is modeled and simulated in high frequency structure simulator and effective permeability is also retrieved from its S parameters. The overall size of metamaterial patch antenna is reduced 70%. Antenna parameters such as Return Loss, Gain, were measured.