An antenna array with 4 ports is designed and implemented. The proposed antenna consists of four ports and a four-antenna array Microstrip patch antenna with ground plane extruded on the substrate. The overall size of the proposed substrate is 220×220 mm
2. The antenna is fabricated on an inexpensive FR4 a dielectric constant of εr=4.5, loss tangent of tan δ=0.019, with thickness of substrate of 1.6-mm and the thickness of patch is 0.035 mm. The measured results represent that the proposed antenna obtained a reasonable bandwidth from 2.4 GHz that could cover point-to-point application defined by 10-dB return loss. Furthermore, The S-Parameters of antenna are simulated and measured. A four-port antenna operating in point-to-point applications is designed; the antenna shows good pattern diversity low correlation coefficient.