Filtronic has secured support from the UK Space Agency’s National Space Innovation Programme to advance a 550W Ka-Band solid-state power amplifier for next-generation satellite communications. The project focuses on boosting the company’s gallium nitride capability, integrated system design, and long-term RF performance as demand grows for higher power and bandwidth across commercial and defence space platforms.
“This award reflects the strength of our innovation pipeline and our place in the UK’s space ecosystem,” said Tudor Williams, Chief Technology Officer at Filtronic. “The 550W Ka-Band SSPA is a significant step change in solid-state performance, offering leading linear power in a TWTA-compatible form factor.
“It will also enable operators to transition from travelling wave tube systems with reduced operating expense and enhanced reliability, helping to support more sustainable and future-ready satellite networks.”
The amplifier is designed to slot into existing travelling-wave tube architectures, providing a straightforward upgrade path for operators moving towards solid-state systems. The development includes a new monolithic microwave integrated circuit, combined with waveguide-based power-handling and thermal-management techniques, intended to support scalable production and consistent operation under demanding conditions.
UK Space Agency Investment Director Dr Craig Brown said: “Filtronic’s project is a great example of the ambition behind the National Space Innovation Programme, turning cutting-edge UK research into commercially viable solutions that strengthen our global competitiveness. By advancing high-power solid-state amplifier technology, this project not only supports more resilient satellite networks but also accelerates the UK’s journey towards a sustainable and innovative space economy.”
