A compact aperture-adjustable antenna developed by researchers at Science Tokyo could improve high-speed wireless communication across the wide 5G millimeter-wave frequency bands without increasing power consumption. The system maintained strong performance across the 57–71 GHz band, improved signal strength by up to 62.2% at 57 GHz and 47.9% at 71 GHz, and achieved data transmission speeds of up to 56 Gb/s. These could support future Beyond 5G and 6G applications, including XR and data-intensive technologies.