Performance Analysis of Uniform Meta-material Lens Embedded U-shape Slotted Patch Antennas

This paper emphasizes on the emergence of Metamaterials in the field of antenna designing. For enhancing the performance of the antenna in terms of various parameters viz. gain, directivity, main lobe and side lobe levels, bandwidth; metamaterials are used as an uniform flat lens along with the antenna. A novel ´U´ shape slotted patch antenna & its array of 2×2 is designed for 2.4 GHz frequency band and simulated using CST software. The performance evaluation of these antennas with and without the meta-material is illustrated. Embedding the meta-material lens with array results in improvement of the gain (18.57%), directivity (25.31%). It also reduces the return losses by 1dB and enhances the bandwidth by 4.69%.