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European Data Relay Satellite System (EDRS)

The European Space Agency (ESA) is positioning several data-relay satellites in the geostationary orbit to relay information between non-geostationary satellites, spacecraft, airborne platforms and fixed ground-stations. The EDRS reduces time delays in the transmission of data intensive and time critical applications and ensures on-demand data availabilty at the right time at the right place.

Key technical challenges:

  • Highly integrated waveguide structures
  • Thermal design for power handling capability
  • High isolation between Rx and Tx unit

Key functionalities:

K-band with electronically switchable feed combiner for multimode operation of:

  • Tele command (operation & IOT)
  • Telemetry (operation & IOT)
  • Data downlink (operation & IOT)
  • Intersatellite link (IOT)
  • Monopulse tracking capability

Project partners:
SES S.A., HITEC Luxembourg S.A.

Multimode Ka-band feed system (EDRS)

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