<p>➀ The W-Cube mission led by ESA successfully validated W-band (75 GHz) and Q-band (37.5 GHz) frequencies for next-gen satellite broadband, enabling high-capacity feeder links while maintaining user compatibility with existing Ka/Ku-band equipment;</p><p>➁ Achieved the world's first transmission of a 75 GHz dual-polarized beacon from a Low Earth Orbit satellite, with ground stations in Graz and Finland capturing critical atmospheric propagation data over four years;</p><p>➂ The 3U CubeSat concluded its mission with a controlled atmospheric reentry in October 2025, while paving the way for future W-band experiments in Geostationary Orbit to enable 24/7 high-throughput satellite systems.</p>