This was in my browser history from earlier this year: https://gizmodo.com/upcoming-cubesat-feature-inflatable-beachball-antenna-1850197655 https://gizmodo.com

This was in my browser history from earlier this year: https://gizmodo.com/upcoming-cubesat-feature-inflatable-beachball-antenna-1850197655 https://gizmodo.com/upcoming-cubesat-feature-inflatable-beac... The military has used them for years on the ground, evidently this is also a nasa spinoff: https://spinoff.nasa.gov/Spinoff2010/ps_5.html https://spinoff.nasa.gov/Spinoff2010/ps_5.html I see the used ones for sale at ham radio flea markets sometimes.