Phased Array Flat Panel Antenna Improves Satellite-Based Connectivity

Viasat's flat panel antenna is described as a compact, lightweight solution for fixed and mobile broadband terminals. It is scalable, customizable and will enable SES Networks to target various types of users with different broadband connectivity needs. Without any moving parts, the antenna can dynamically steer beams and rapidly follow a satellite's position, allowing seamless handover between satellites in a non-Geostationary Satellite Orbit (NGSO) constellation. It also features advancements in spectrum usage; dynamic interference mitigation to and from other satellites; enhanced processing power; and the ability to perform on-the-fly reconfiguration of antenna characteristics to enable end-terminals to support and communicate within a hybrid satcom system of NGSO and Geostationary Satellite (GEO) systems.

 

Additionally, Viasat’s phased array is based on proprietary flat panel core technology, inclusive of a new radio frequency (RF) integrated circuit and a modular approach that enables multiple types of user terminals, from residential broadband and in-flight Wi-Fi to connected car and backhaul applications, to keep pace with growing broadband connectivity demands. The current phased array uses a dual-beam flat panel antenna system operating in the full Ka- frequency band with an ability to be customized for Ku-band applications. The development of the Viasat phased array is in part supported by the European Space Agency (ESA), through a Public Private Partnership (PPP) Viasat and ESA announced in November 2017.

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