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Metamaterial unit cell with negative Refractive Index at C band

A novel configuration of left handed metamaterial (LHM) unit cell based on microstrip line loaded split ring resonator (SRR) has been proposed. Unit cell is optimized to get negative refractive index using a Full wave 3D electromagnetic simulator. The proposed unit cell exhibits negative refractive index over 5.7GHz to 6GHz frequency band. The unit cell structure has low profile and occupies volume of 17x17x17mm3.