High-performance RF, Microwave and mmWave design and manufacture

Filtronic products transmit, receive, condition and manage 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.

Experience and innovation

Filtronic are radio frequency experts, working with clients to solve their complex RF, microwave and mmWave challenges. We have a track record of providing high performance, customised solutions within critical communication sectors spanning over 40 years. Our products are critical to a range of challenging applications including telecommunications infrastructure, aerospace and defence, HAPS & LEO, test & measurement, and emergency first-responder communications.

Founded by Professor David Rhodes at Leeds University in 1977, Filtronic initially worked on telecommunications components for the Tornado aircraft. The company grew quickly and became one of the largest ever to be spun out of a UK university.

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.

Filtronic PLC radio frequency experts

Purpose, Vision & Mission

Our purpose is to be the trusted provider of innovative RF solutions. We love complex RF, Microwave and mmWave challenges.

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 high performance facilities within the UK and USA.

Vision & Values
Filtronic PLC RF, microwave and mmWave experts

Latest news

Find out more about our latest projects and keep up to date with all our company news and blogs. Filtronic is listed in the Alternative Investment Market (AIM), a specialised section of the London Stock Exchange under the stock code FTC.

For investor relations click here.

News & Events

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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News & events

Accreditations & industry associations

Filtronic is committed to the highest standards of quality management systems, and environmental certification.  We are members of all the leading industry associations to find out more click here.



Tudor Williams joins Filtronic as Director of Technology

22 October 2021

Filtronic formally presented with 2021 Queen’s Award for Enterprise, International Trade

11 October 2021

UK’s new science minister George Freeman visits Filtronic

29 September 2021

Filtronic reaches 60k milestone with transmit/receive modules for European phased array radar application

7 September 2021