Antennas

Helix and Patch Antennas

• Typically used for GPS applications or TTC subsystems due to its wide angle coverage:
  • Low Earth Orbit (LEO) Satellites
  • Geostationary Communication Satellites
  • ATV Supply Vehicle for International Space Station
  • Europe’s global navigation satellite system: Galileo (IOV and FOC Phases)
  • VEGA ESA’s series of small launchers
  • Intermediate eXperimental Vehicle, IXV
• The design can be customized (Radiation performance and/or mechanical configuration)

Hemispherical Antennas

• Baseline supplier for the TTC subsystems in the main platforms of geostationary telecom satellites in Europe
• On board Low Earth and Medium Earth Orbit constellation of satellites
  • Globalstar-2, O3B, Iridium NEXT
• Used in X Band for TTC subsystems in scientific missions
  • HERSCHEL, PLANCK, ROCSAT, BEPI COLOMBO, LISA PATHFINDER, GAIA, EXOMARS, SOLAR ORBITER
• Qualified designs in C Band, X Band, Ku Band and Ka Band

Wide Coverage Antennas

• Widely present in the TTC subsystems of US satellite platforms
• Typically integrated together with Omni Directional Antennas
• Qualified designs in C Band, Ku Band and Ka Band
• Linear or Circular Polarization
• Support structure is customizable for the mission requirement

Omni Directional Antennas

• Widely present in the TTC subsystems of US satellite platforms
• Dual Band operation (Transmit / Receive) with a single antenna with stacked radiators
• Toroidal pattern around longitudinal axis with Lineal or Circular polarization
• Qualified designs for wide band operation

X Band Isoflux Antennas

• Used for data downlink from Low Earth Orbit (LEO) satellites in Earth Observation missions
• Isoflux Gain Pattern with a gain figure up to 6.75 dBi at 63º from boresight
• Qualified design on board wide amount of Earth Observation missions
• Support structure is customizable for the mission requirement

Array Antennas

• Global coverage in low bands (UHF, L and S Bands), where conical horns become too big
• Gain pattern performance can be optimized in response to particular requirements
• Standard Gain performance is G > 17 dBi or G > 13 dBi for EoC |q| < 9º
• Low Axial Ratio within EoC (AR < 1 dB)

Conical Horn Antennas

• Transmit and Receive Horn Antennas in all bands
  • L Band, S Band, C Band, X Band, Ku Band, K Band and Ka Band
• Custom Feed Network
  • Linear / Circular Polarization (OMT, Septum polarizer…)
  • Custom designed filters, diplexers or triplexers
  • Test Couplers
  • Waveguide/Coaxial Interfaces/Internal waveguide loads
• Mechanical design for mass optimization
  • Intermediate flange, lateral bracket or vertical support
  • Implementation of desired pointing angle
  • CFRP combined with Aluminium Alloy when convenient

Pyramidal Horn Antennas

• Typically used in Ku Band and Ka Band TTC subsystems for On-Station TCR, providing shaped coverage with minimum gain values assured for particular Earth regions
• The Feed Network may include Diplexers or Triplexers for band discrimination (Transmit, Receive, Beacon) or Ortho-Mode Transducers for polarization discrimination
• Support Bracket design is specific to the mission requirements and desired pointing angle

C Band Feed Horn Assemblies

• Lightweight machined corrugated feed horn antenna
  • RF internal profile may be furnished by the Customer or optimized to meet specific requirements
• Wide Dual Band Operation Compact 4-Port Linear or Circular Polarization Ortho-mode Transducer
• Thermo-mechanical design of the complete assembly and support brackets designed in response to specific mission requirements

Ku Band Feed Horn Assemblies

• Lightweight machined corrugated feed horn antenna
  • RF internal profile may be furnished by the Customer or optimized to meet specific requirements
• Very compact wide band asymmetrical LP OMT covering both Ku-Band TX and RX bands
• Symmetric LP OMT design is available covering TX and RX band
• 2-port, 4-port or 6-port feeding networks including diplexers and triplexers when required.
• Thermo-mechanical design of the complete assembly and support brackets designed in response to specific mission requirements

Ka Band Feed Horn Assemblies

• Lightweight machined corrugated feed horn antenna
  • RF internal profile may be furnished by the Customer or optimized to meet specific requirements
• Compact 2 Port or 4 Port CP OMT covering Transmit (17.7 to 20.7 GHz) and Receive (27 to 30 GHz) bands specifically designed for multibeam / feed cluster applications
• Thermo-mechanical design of the complete assembly and support brackets designed in response to specific mission requirements

Specific Purpose Antennas

• Dual Antenna for Search & Rescue payload on board all satellites in Galileo constellation
• Receive mission through UHF Band Array Antenna with helix unitary elements; transmit mission through L Band Short Back Fire Antenna
• K/Ka Feed Horn for MADRAS payload on board MEGHATROPIQUES Earth Observation mission (CNES / ISRO joint satellite)
• Three LP OMTs operating at 36, 24 & 18 GHz