<p>➀ The W-Cube mission, initiated by ESA, successfully tested W-Band (75 GHz) and Q-Band (37.5 GHz) frequencies as feeder links for next-gen LEO satellite broadband systems, maintaining compatibility with existing Ka/Ku-band user devices;</p><p>➁ The CubeSat, developed by a European consortium, conducted four years of atmospheric impact studies and published key results, advancing the design of high-frequency satellite systems;</p><p>➂ The satellite will safely deorbit in October 2025, paving the way for future GEO-based W-band missions to enable high-capacity, continuous satellite broadband.</p>