Thales Alenia Space Achieves 45% Weight Reduction on Satellite Antenna Parts Using 3D Printing

Thales Alenia Space, a leading European aerospace manufacturer, has achieved a breakthrough in satellite component design by reducing the mass of antenna reflector tripods by an average of 45% using additive manufacturing.

The Achievement

In a collaboration with Cognitive Design Systems, Thales Alenia Space developed a parametric workflow that enabled the automated redesign of an entire antenna reflector tripod family. The result: dramatically lighter components that maintain the structural integrity required for space applications.

The new reflector concept combines composite materials with metallic parts made using 3D printing. It incorporates approximately 100 advanced titanium inserts, allowing the reflector to be assembled in just one week — a first in Europe.

Performance in Orbit

In terms of performance, the new antenna reflector offers very high geometric stability in geostationary orbit. This makes it well suited for telecom missions operating in Ku and Ka band, as well as the highly demanding Q/V band frequencies.

The company has a long history with 3D printing in space. All communications satellites built by Thales Alenia Space today feature 3D-printed antenna supports and reflector fittings. The company has had 100 metallic parts in orbit, with that figure expected to quadruple next year with the Spacebus Neo telecommunications satellites.

Why 3D Printing Matters for Satellites

For satellite manufacturers, every gram matters. Launch costs are directly tied to mass, and reducing component weight translates directly into cost savings. But beyond weight, additive manufacturing offers additional benefits:

• Consolidated assemblies: Multiple components can be printed as single pieces, reducing part counts and potential failure points
• Rapid iteration: Design changes can be implemented quickly without tooling modifications
• Optimized geometries: Lattice structures and organic shapes can achieve strength-to-weight ratios impossible with traditional manufacturing

The Broader Trend

Thales Alenia Space's achievement reflects a broader shift in the aerospace industry. What started as experimental 3D-printed brackets has evolved into mission-critical components that directly impact satellite performance and launch economics.

As the technology matures, we're seeing more satellite manufacturers adopt additive manufacturing not as a novelty, but as a core capability in their design and production workflows.