Munich | Bucharest

Large Deployable Reflector (LDRS)


Increasing complexity of space-based applications for civil and defense purposes will also in future require large deployable antennas, while at the same time the demand for lower costs of transportation inevitably leads to smaller units also. Large deployable antennas will become for some applications the strategic key to space-technology to solve this dilemma.
On the level of subsystems in Europe the Bavarian company HPS has very early raised the claim for leadership in the field of LDRS large deployable reflector subsystems (reflector, arm, hold-down and release mechanisms, thermal hardware, control-electronics), with focus on scalability, modularity, storage space, mass and – last, not least – price. HPS Germany has concentrated on the project lead, the subsystem configuration, design & analysis, the reflector RF design, the deployable arm and the reflective metallic mesh.

The HPS-offer covers each and every application in the field of antennas (earth observation, telecommunications, science and military). Yet another basis for its solid leadership is HPS´ very tight cooperation with experienced European SME, especially with the German companies LSS (on reflector level) and RUAG Space Germany (on mechanisms level).
As flagship project, HPS is leading a consortium of 15 European partners developing until end of year 2020 a 6 m diameter proto-flight model (PFM) of a large deployable reflector subsystem (reflector, arm, HDRMs, etc.), called LEA (Large European Antenna).
Until April 2021 a 7m diameter Engineering Model will be designed, built and tested by the consortium, led by HPS, for the Copernicus Mission CIMR.

Large-Deployable-Antennas-sample-5

Contact:
For further information please contact our chief engineer.

References:
→ Success Trajectory

Large Deployable Reflector For Earth Observation (LEOB)

Large Deployable Reflector for Earth Observation (LEOB)

  • Engineering-Model (EM) development of CIMR / ROSE-L Deployable Reflector Antenna
  • Applications: Earth observation, telecom, science, defense
  • 15 Partners (DE, PT, ES, DK, SE)
  • Lead: HPS-Germany (project & technical management)
  • Budget: 5 Mio Euro by ESA
  • Timeframe: 4/2019 – 04/2021

Features:

  • LEOB-Subsystem includes: reflector, reflective surface, one arm segment, hinges, deployment mechanisms, electronics, thermal hardware, test-GSE, test methodology.
  • LEOB-EM (CIMR) specification:
    – 8 m ring diameter (7m projected aperture)
    – F/D=0.74
    – many frequencies, up to Ka-Band (36.5 Ghz)

Highlights:

  • 15.04.2019: Kick-off
  • 28.05.2019: Requirements Review
  • 10.07.2019: Breadboard TRR & selection of CIMR reflector configuration for EM

Large European Antenna (LEA)

LEA-Logo

Description:

  • European H2020 Program („non-dependance“)
  • Protoflight-Model (PFM) development
  • LEA-PFM is offered for free to potential satellite programs in exchange to flight opportunity
  • Applications: Earth observation, telecom, science, defense
  • 15 Partners (DE, PT, ES, DK, SE, FR)
  • Lead: HPS-Germany (implem. & technical management)
  • Budget: 5 Mio Euro by EC + 2 Mio Euro Investment
  • Start TRL: 5, End TRL: 8
  • Timeframe: 11/2017 – 10/2020
  • Ready to launch: 2021
  • LEA-FO (follow-on products) developments in the frame of the virtual LEA company „WeLEA“:
    – lead: HPS-Germany
    – subcontractors: LEA partners: LSS, HTS, TICRA, INEGI,
    HPS-Portugal, INVENT, INTA, LUMA Metall, vH&S, Etamax.
    – in addition, if agreed/wished by the customer:
    OHB (DE) Airbus (DE), ThalesAleniaSpace (FR)
  • References:
    HPS Space News
    HPS Press-Release
    Space Intel Report

Features:

  • LEA-Subsystem includes: reflector, reflective surface, arm, hinges, deployment mechanisms, electronics, thermal hardware, test-GSE, test methodology.
  • LEA-PFM specification:
    – 6 m ring diameter with 6 m arm length, F/D=1.0
    – X-band (10.65 GHz)
    – Ku-band (18.7 GHz) for RF-compatibility tests.
  • LEA-FO targets:
    – 5 m to 25 m reflector diameter
    – C-, L-, S-, P-, Ku-Band (longterm Ka-Band).

Highlights:

  • 02.11.2017: Kick-off (as scheduled)
  • 18.01.2018: Major LEA-PFM parameters specified.
  • 20.07.2018: Preliminary Design Review

Large Deployable Reflector (SCALABLE)

Large-Deployable-Antennas-img1

Features:

  • C-Band, L-Band, S-Band
  • Scalable up to Ka-Band
  • LEO application for Earth Observation
  • GEO application for Telecommunication
  • Diameters between 5 m and 20 m
  • Mass of reflector assembly: 25 kg (5 m) and 60 kg (12 m)
  • Close co-operation with subcontractor LSS, Munich
  • Reflecting surface: gold plated metal mesh by HPS

Description:

Reflective Metal Mesh (MESNET)

bild-rechts-engineering-Model-MESNET

Description:

  • ESA ARTES project
  • Demonstrator of a reflective surface of a LDR
  • Applications: Earth observation, telecom, science, defense
  • Lead: HPS-Germany (implem. & technical management)
  • Timeframe: 2016 – Q2/2020

Features:

  • MESNET reflector specification:
    – 6 m ring diameter
    – C-band to Ku-band frequency
  • Optimized mesh and supproting network design for C-, to Ku-band frequency.
  • Refined process for combination of several mesh segments.
  • Traceable step-by-step procedures for final assmebly of mesh, network, and reflector ring.

Highlights:

  • 19.04.2016: Kick-off
  • 16.11.2017: HRR
  • 17.09.2019: MRR
  • September 2019: TRR

Large Deployable Arm (ABDS)

Boom-Folded

Description:

  • Ultra-stable deployable booms
  • Applications:
    – large deployable antennas
    – scientific instruments to be deployed
  • Planning:
    – Engineering Model tested end 2018
    – PFM Model ready end 2020.

Features:

  • modular and scalable extending up to 30 m length
  • pointing accuracy: 10-4 m/m
  • Stowed Eigenfrequency: > 130 Hz
  • Deployed Eigenfrequency: > 1 Hz
  • Mass: 8 kg/m.

Highlights:

  • 12/2017: CDR sucessfully passed (ESA activity called „ABDS“ with HPS as prime contractor, HTS, INVENT, INEGI as subcontractors).
  • 06/2018: erfolgreiches EM-TRR