Products/GaAs · Wing
Cell typeSi-CoreGaAs

GaAs Solar Wing

Our deployable wing fitted with triple-junction GaAs cells instead of silicon. One to five arrays on the same yoke and hinges as the Si-Core Wing, for missions that need more power per area or have to live with a harsher radiation environment.

Each array carries ES-30TJSC-80 or ES-30TJSC-30 CICs (coverglass, interconnectors, bypass diode) welded into serpentine series strings on the honeycomb sandwich panel. The panel is sized to the cell grid, the large cells are nested at their wafer chamfers, and string lengths are set so nothing runs into the hinge fittings. Arrays fold face-to-face into a flat launch stack on the yoke and deploy in sequence. Substrate, hinges, hold-down and release, yoke, harness and strings are delivered as one unit.

1–5 arraysES-30TJSC-80 or -30 CICs · 30 % BOL
CAD visualizationDrag to rotate
Wing with ES-30TJSC-80: 48 CICs per array · 674 × 812 mm panel · 70 % active area
Key featuresGaAs · Wing
01

Modular by design

One array type, one yoke, one set of interfaces — configure one to five arrays per wing.

02

GaAs where the mission needs it

Triple-junction CICs at about 30 % BOL efficiency — roughly 1.7 × the power per area of silicon, and a radiation lifetime suited to GEO, MEO and long-duration LEO.

03

Honeycomb substrates

Aluminium honeycomb sandwich panels — flight-proven, from our structures partner.

04

Hinges and hold-downs per array

Corner hinge fittings at every joint and two hold-down pads per array, aligned through the stack.

05

Strings welded in Berlin

Cells welded into series strings on our qualified stringing line, each cell measured on the AM0 test bench, bypass diode per cell.

06

Tested under our roof

Shaker, thermal vacuum, deployment on the anti-gravity rig.

ApplicationsTypical use cases
01

GEO and MEO platforms

Radiation lifetime and efficiency per area over long missions.

02

Long-duration LEO

Where silicon degradation would eat into the power margin.

03

Envelope-limited buses

More power from the same stowed volume and panel area.

Talk to salesConfigured per mission

Defined with you — not from a table.

Number of arrays, cell type and string layout, hinge and root interfaces, harness and connectors are defined together with you for your mission and bus. Our sales team walks you through the options and comes back with a proposal, budgetary pricing and lead time.

What we need from you

Your bus and envelope, the power budget per spacecraft, bus voltage, mission orbit and lifetime, and the number of spacecraft you are planning for.