Flat panel mobility user terminals for Ka-band GEO/NGSO broad band satellite access

Viasat invested in the past years essential effort to develop airborne and land-mobile user terminals, suitable for future GSO (Geostationary Orbit) and new upcoming NGSO (Non-Geostationary Satellite Orbit) connectivity demands. The electronical steerable antenna approach is based on a phased array technology, composed of a custom printed circuit board equipped with a proprietary RFIC. The same building blocks of this array have been successfully used across the different markets. We intent, with this paper, to gives a summary of the main design features and an overview of the antenna performance and results achieved on first flight tests.