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Galileo S-Band Feeds TT&C

The Galileo programme is Europe’s initiative for a state-of-the-art global satellite navigation system, providing a highly accurate, guaranteed global positioning service under civilian control. The fully deployed system will consist of 30 satellites and the associated ground infrastructure.

Galileo will be inter-operable with GPS and GLONASS, the two other global satellite navigation systems consisting of:

  • a constellation of 30 satellites in Medium-Earth Orbit (MEO)
  • 30-40 sensor stations
  • 3 control centres
  • 9 Mission Uplink stations
  • 5 telemetry, tracking and command (TT&C) stations

The ground control segment is responsible for the basic functionality of theGalileo satellites and their correct orbits. For this purpose 5 globally positionned ground control stations will be available.

Key technical challenges:

– Integration of (mechanically) large components in (electrically) small antenna, led to very compact design
– Precision measurements as base for calibration measurements to satellite
– Complex project management

Key functionalities:

– RHCP and LHCP polarized Rx signals in the 2.200 to 2.300 GHz band
– RHCP or LHCP Tx signal (simultaneously) in the 2.025 to 2.120 GHz band
– Tracking in RX band (2.200 to 2.300 GHz)

Project partner:

Vertex Antennentechnik GmbH, SES, HITEC

S-band feed system (Galileo TT&C)

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