A Compact dual band MIMO Antenna for wireless communication applications

Abstract

In this study, a compact dual band 2-element Multiple Input Multiple Output (MIMO) multiband antenna is designed. Two radiating patches make up the suggested antenna, which aims to produce multiband resonance antenna. The 45×33 mm2 two element MIMO antenna is printed on a 1.6 mm thick FR-4 substrate with a dielectric constant of ɛr = 4.3 and a loss tangent of 0.02. An optimized dual band antenna was produced as a result of a parametric research based on the FDTD technique, which improved the structure's performance with regard to operational bandwidth. Additionally, a separate 50Ω-fed two-element MIMO arrangement is taken into consideration. By introducing spatial diversity into the MIMO arrangement, good isolation can be achieved without the need to use well-known techniques of decoupling structures. Results shows that the system has a mutual coupling of less than -15 dB between the various elements and operates on two bands: "3.5GHz WiMAX." and "4.2 GHz " Moreover, an analysis of the Diversity Gain (DG), Envelope Correlation Coefficient (ECC) and Channel Capacity Loss (CCL) parameters shows that they satisfy the practical standards: DG > 9.80, ECC < 0.06, and CCL < 0.4 bits/s/Hz over the relevant bands