Design of Self-Isolated Two Port Circular Patch Antenna for 5G Wireless Application

Abstract

For fifth-generation (5G) and fourth-generation (4G) mobile communication, a multiple-input multiple-output (MIMO) antenna system is proposed. This research provides a self-isolated circular patch antenna element with compact dimensions of 90 × 80 × 1.6 mm³. The proposed antenna structure consists of a two-port configuration with different rotation characteristics such as 0⁰ (Co-planar), 90⁰ (Rotated), 180⁰ (Inverted). The proposed antenna design facilitates dual-band operation at 3.4 and 3.9 GHz. It offers good isolation between -30.64dB to -41.07dB and radiation efficiency greater than 85% without utilizing any additional isolation or decoupling components. The proposed antenna used FR4 epoxy substrate with thickness 1.6mm and simulated using HFSS software.