In this paper we present a compact MIMO array that operates in the 2.6 GHz for Long Term Evolution (LTE) band and wireless communication systems. The array consists of four compact patch antennas on a dielectric substrate with total dimensions of 125 mm x 62.5 mm x 1.27 mm. Modifications on the ground plane along with systematic placement and orientation of each antenna on top of the substrate plays a key role in reducing the mutual coupling which normally degrades the MIMO array performance. The Performance of this designed MIMO array is assessed through simulations and measurements of the scattering parameters, radiation patterns, and correlation coefficients.