High-performance RF, Microwave and mmWave design and manufacture

Filtronic’s products transmit, receive and condition radio signals, particularly at microwave and mmWave frequencies. Mission-critical communication networks depend on our systems and components and we have a track record of working with global tech giants as well as innovative SMEs.

300MHz to 175GHz

Filtronic designs and manufactures RF-to-mmWave components and subsystems for mission-critical communication networks. Our clients depend on us to deliver high-performance RF solutions solving their challenging requirements. We accelerate their market entry, reduce whole-life & development costs, minimise cost of quality and provide them with a competitive advantage.

Our products are critical to a range of challenging applications including telecommunications infrastructure, aerospace and defence, space, test & measurement, and critical communications.

Filtronic has a rich history of innovation, with an entrepreneurial spirit and product portfolio that has been developed by some of the industry’s leading engineers. Our bespoke and off the shelf product range includes transmit and receive modules, power-amplifiers, transceivers, MCPs, SIPs and filters, operating up to 114GHz.

Innovation in RF technology

Our purpose is to be the trusted provider of innovative RF solutions. We love complex RF, Microwave and mmWave challenges and delivering solutions that give our clients competitive advantage.

Our vision is to be known for  enabling the future of RF, Microwave and mmWave communication.

Our mission is to ensure we are creating value for our clients through technology leadership..

We have a 40 + year track record of designing and manufacturing high performance, customised solutions from our purpose built facilities within the UK and USA.

Our values & behaviours
Critical communications

Market expertise

Find out more about how our components and sub-systems enable mission-critical communication networks globally to perform resiliently, consistently and reliably. Our technologies are applied across the RF spectrum from 300MHz to 174GHz in markets such as aerospace & defence, telecommunication infrastructure, critical communications and space. To keep up to date with all our company news and blogs.

Our markets

Our values

  • Act with integrity; being honest, always keeping our promises.
  • Be respectful to all; it is the foundation of our culture.
  • Strive for excellence; it is what our clients and colleagues expect and what we endeavour to deliver.


Founded at Leeds University in 1977, Filtronic quickly became the largest company ever to be spun out of a UK university. The company quickly gained a reputation for innovation, quality and technical knowledge.



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Filtronic is an award winning designer and manufacturer of RF, microwave and mmWave components and sub-systems. We have been recognised in various industry awards and recently we were awarded the queens award for export.



Filtronic ushers in new leadership era with CEO Nat Edington

15 May 2024

King’s Award for Innovation 2024

7 May 2024

Filtronic launches into the future, securing a Strategic Partnership with SpaceX for Starlink constellation

24 April 2024

Navigating exciting horizons: Nat Edington assumes CEO role at Filtronic

2 April 2024