<p>In the era of lightning-fast communication, 5G technology is at the forefront, demanding antennas that can match its pace. Several antennas must be deployed at the sender and recipient to lower communication faults, improve speed, and expand data transferability. Present 5G wireless communication networks which are now in use in the business sector have made it possible to achieve faster data rates. This is achieved by enabling simultaneous data transmission through numerous channels that effectively mitigates the challenge of worldwide bandwidth shortage. In addition to outlining 5G standards, this study conducts a comprehensive examination of current approaches and technologies in Multiple Input, Multiple Output (MIMO) antennas for 5G technology. The Mutual Coupling (MC) components in MIMO antenna system significantly impacts performance. When antenna elements sit closer than half the wavelength in open space (λ₀/2), surface waves affect their properties. It’s critical to reduce MC when placing antenna elements close together. This article presents a cutting-edge exploration of techniques and strategies for optimizing MC between antenna elements thereby enhancing 5G MIMO antenna performance. Our contemporary investigation delves into advanced decoupling methods and interference mitigation. This research offers insightful information on the choice of MC, which forms the basis for the creation of adaptable antennas that can blend in with the quickly changing MIMO and 5G environments. Moreover, a concise yet comprehensive comparison of various strategies and techniques employed to reduce MC are presented. This comparison yields valuable insights and offers practical approaches, serving as a valuable resource to support researchers in their work within this field.</p>