This chapter presents a metamaterial-inspired asymmetric coplanar strip (ACS)-fed 2 × 2 multiple-input multiple-output (MIMO) antenna. The compact MIMO configuration is electrically compact triple band single antenna 0.24λ × 0.2λ inspired by C-SRR metamaterial. Four symmetric radiating elements were stacked orthogonally to further reduce the physical size of the antenna and increase isolation. The proposed MIMO antenna is designed using four identical ACS-fed C-SRR metamaterials, with a footprint of 0.458λ × 0.458λ on a Rogers 5880 substrate with dielectric constant εr = 2.2. The array of SRRs used in between radiating elements to reduce the strong magnetic field coupling by using an antiparallel current at operating frequencies by this isolation is improved by −25.38 dB. The proposed 2 × 2 MIMO antenna functions in three distinct frequency bands 2.4 GHz (2400–2495 MHz), 5 GHz (5150–5895 MHz), and 6 GHz (5945–7125 MHz). The design includes robust radio frequency features, making it a good fit for Wi-Fi 7 application. Industry standards are satisfied with computed diversity metrics such as envelope correlation coefficient (ECC < 0.01), diversity gain (DG ≈ 10 dB), and total active reflection coefficient (TARC < −10 dB) that guarantee MIMO technology’s effective diversity performance.