Compact MIMO Antenna Design using Isolation Techniques

In this paper, the MIMO Multiple Input Multiple Output antennas are designed by placing a metamaterial structure in between the two microstrip patch antenna. While designing the MIMO antenna, there is a drawback caused due to mutual coupling, to overcome this drawback, the metamaterial structure is placed in between the antenna arrays. The antennas are spatially separated by a distance of 8mm. By placing the metamaterial structure between the antenna, isolation improvement of 7dB is obtained. The proposed design works in frequency range of 5.8GHz. Since the simulated antenna has improved gain, lower capacity loss, better isolation, and radiation efficiency, it is used in various wireless application such as automobiles, portable devices etc. The proposed antenna is well suited for MIMO antenna applications due to its advantages like low Equivalent Circuit Conductance, high gain, minimal capacity loss, and exceptionally less mutual coupling.