MIMO 2x2 RHCP Array Antenna for Point-to-Point Communication

A high gain 5.8 GHz multiple input multiple output (MIMO) 2x2 Array antenna with dimension of 58 x 110 mm(2) is proposed in this paper. The proposed design is composed of two sets of four elements antenna array. Each element is constructed from four truncated arrays radiating elements which capable to achieve circular polarized capability. The antenna is fed by two coaxial feeds with full ground plane and etched on Taconic TLY-5 substrate with 2.2 and 1.575 mm of dielectric constant and thickness respectively. An array antenna concept is used in this design to enhance absolute gain of up to 14.26 dB and has a reflection coefficient of -28.2dB. The combination of two-port array antenna will enhance the gain of transmitter to achieve a last mile performance while simultaneously avoiding significant attenuated signals under adverse atmospheric conditions. This paper focusing more on MIMO system that are used in 5.8 GHz applications.