Design of Decagon Ring Two Port MIMO Antenna for Wireless Fidelity-6 Application in Next Generation Futuristic Wireless Devices

The design of two port multiple input multiple output (MIMO) decagon ring with dual inverted T-shaped radiators functioning in Wireless Fidelity (Wi-Fi) 6 applications for next generation futuristic wireless devices is designed and analyzed. The two antenna elements are constructed on a FR-4 substrate with size of 42.5×19.5mm2, thickness 0.8mm and excited using co-planar waveguide (CPW) fed technique to operate smoothly with frequency span of (5.88 - 7.57 GHz) fulfilling the bandwidth requirement of Wi-Fi-6 bands. In order to be the potential candidate for MIMO practical applications, the two CPW grounds are connected with each other along with an inverted-Psi shaped radiator embedded between two ground planes which also act as a decoupling structure to reduce the interference between antenna elements. Moreover, the proposed MIMO antenna generate bandwidth of 30.03% in Wi-Fi-6 frequency band at single resonating frequency of 6.7GHz, isolation >18dB, gain greater than 4dBi throughout the desired band. Finally, the MIMO parameters like envelope correlation coefficient (ECC) < 0.02 and diversity gain (DG) ~ 9.9dB are also achieved in Wi-Fi-6 operating bands.