Design of Four Element Multiband MIMO Antenna for 5G Devices

The design of $4 \times 4$ multiple-input multiple-output (MIMO) antennas for upcoming 5 G devices is presented in this study. Each patch in the MIMO arrangement is printed as a rectangular patch on the top layer of the substrate and has dimensions of $3.26 \times 1.8 \mathrm{~mm} 2$. FR4 epoxy is used in the suggested design as the dielectric substrate. Its dielectric constant (er) is 4.4 and its thickness (h) is 1.6 mm. For 5 G communication requirements, an effective performance within the required frequency range, along with enough gain and bandwidth, calls for the use of FR4 epoxy substrate in combination with the specified dimensions and layout. A ground plane forms the bottom layer of the substrate, and eight patch antennas, or $4 \times 4$ MIMO antennas, are positioned in the top layer. Resonance of the MIMO antennasis at 29.