High Gain MIMO Antenna Array For Fifth Generation Wireless Applications
Fifth generation (5G) wireless communication is designed to provide much higher data rates, lower latency and higher network capacity in comparison to 4G systems. It supports data rates ranging from 5 to 50 Gbps for various tasks. To address these needs, MIMO antennas are widely used. The ITU sets out different frequency bands in millimeter wave (mmWave) including 24.25–27.5 GHz, 26.5–29.5 GHz and 37–43.5 GHz for 5G services. Due to the high propagation losses at these frequencies, high gain antennas with high radiation properties are needed. Microstrip antennas are preferred because of their small size, low profile and ease of fabrication. Antenna arrays are also widely used for gain, directivity and radiation efficiency in mmWave applications in 5G. A two port circular patch 2x8 high gain MIMO antenna array is designed for millimeter (mmWave) frequency band. The proposed two-port MIMO antenna, in which each port comprises a 1 × 8 corporate-fed antenna array. The antenna is designed to work with a 2:1 VSWR bandwidth of 1.18 GHz. The proposed design covers -10 dB impedance bandwidth of 26.59-27.77 GHz. The proposed MIMO antenna gain is 13.8 dBi with 94.44% radiation efficiency.