Filtronic Unveils Advanced High Bandwidth DIFI Solution to Enable Fully Virtualised Satellite Ground Stations
Filtronic plc (AIM: FTC), a global leader in high-performance and high-frequency solutions for the space, defence and telecoms infrastructure markets, have announced the launch of its Digital Intermediate Frequency (DIFI) solution, engineered to accelerate the industry’s transition from traditional analogue RF infrastructure to flexible and secure RF-over-IP connectivity for cloud-enabled satellite networks.
Fully aligned with the IEEE-ISTO STD 4900, Filtronic’s DIFI solution enables seamless interoperability across a rapidly expanding ecosystem of next-generation digital IF systems. As an active member of the DIFI Consortium, Filtronic is participating in regular multi-vendor interoperability trials, reinforcing the company’s commitment to open, standards-based innovation.
DIFI represents a fundamental shift in how signals are transported within modern satellite and defence communication systems. By sampling analogue signals, encapsulating them as encrypted IP packets and transmitting them over standard ethernet networks, DIFI eliminates dependence on heavy analogue IF infrastructure and multiple coaxial cable runs.
This modern approach not only simplifies installation and reduces the operational burden for ground‑segment teams but also drives down both capital expenditure and ongoing operational expenditure. With fewer physical components to install, maintain and replace, operators can achieve lower capex from the outset and reduced opex over the lifecycle of the system. Critically it also adds resilience as they can focus efforts on protecting one centralised secure facility, while eliminating potential vulnerabilities at each individual antenna site.
The global growth in data demand from high throughput satellites, LEO constellations and the new defence applications have all heightened the need for architectures that are scalable, secure and less operationally burdensome. Filtronic’s new DIFI solution directly addresses these pressures, especially for those wishing to take advantage of higher band frequencies such as those used at Ka, Q/V, E and W bands
The platform features six transmit-and-receive RF channels, each capable of interfacing to carriers up to 2.5 GHz of instantaneous bandwidth on IF carrier frequencies up to 6GHz. The RF signals can be sampled at 8 to 14bit level and the encapsulated RF signals are transmitted over IP via a 100Gbit ethernet port with a second port being enabled should additional data rate be needed. This exceptionally wide bandwidth provides a substantial performance advantage over existing lower‑bandwidth solutions in the market, while maintaining a competitive pricing model. In addition, an internal RF mezzanine board can be customised with tailored IF filtering for Block Upconverter and Block Downconverter applications, giving operators the flexibility to adapt the system to the specific needs of their ground segment.
Nima Razavi-Ghods, Head of Systems Engineering at Filtronic, said, “Digital IF is a pivotal technology for the future of satellite communications, and its adoption marks a major step forward in enabling truly virtualised, cloud‑ready architectures. With this new product, we’ve focused not only on delivering outstanding bandwidth and performance, but also on ensuring that the solution is practical, interoperable and future‑proof. Our goal is to give operators a platform that reduces hardware complexity, strengthens resilience and unlocks the full potential of digital transformation across the ground segment.”
The introduction of Filtronic’s DIFI platform reflects the company’s ongoing investment in enabling high performance, mission critical communication systems. By offering wider bandwidth, greater flexibility, stronger security and a significantly reduced hardware footprint, the new solution sets a benchmark for the next generation of digital IF infrastructure.