Research and Design of a High Isolation 5G Antenna for Smart Phone

A multi-band 8×8 MIMO antenna array operating in the Sub-6 GHz band is designed and studied in this paper. Eight T-slot antenna elements with excitable dual-resonant mode are integrated on the ground surface of the substrate, and eight F-shaped feeding belts are set on the surface of the substrate for coupling feeding. The operating bandwidth of the antenna covers LTE42and LTE46 according to the simulated results. It basically meets the acceptable standard of 5G MIMO antenna array in mobile phones (return loss is greater than 6dB, isolation is greater than 10dB). It can be used in large-scale MIMO applications of 5G smart phones.