Development and qualification of a 2.8m lightweight reflector for C, X, Ku and Ka-band applications (i.e. frequencies up to 32GHz), being representative of a reflectors’ family for telecommunication satellites.
Its design is conceived to guarantee compatibility with state-of-the-art platforms (particularly those employing electric propulsion) and compliance with stability, mass and intermodulation requirements.
The reference configuration is based on the most recent spacecraft family by Thales Alenia Space (i.e. Spacebus-Neo).
Besides thermo-mechanical and electrical performance, the design objectives have included production-related aspects, such as reduction of manufacturing lead time and of production cost, which led to the definition of a standardized design for the reflectors’ family, based on a modular architecture and on the wide use of standard parts, as well as on the adoption of new materials and new technologies.
Two examples of this design approach are here reported:
- The backing structure is the same for both inner and outer reflector in the double accommodation configuration and is realized using modular elements that can be adapted to different reflector sizes and shapes.
- The reflector mould has been manufactured in CFRP in order to achieve big reflector sizes at low cost