Innovators, collaborators, RF pioneers

Filtronic has a strong engineering pedigree and are a trusted provider of leading edge integrated RF solutions to a broad range of critical communication applications from 300MHz to 175GHz. Our track record, coupled with our highly experienced engineers enables repeatable high-performance.

Enabling the future of RF, microwave and mmWave

Filtronic is a designer and manufacturer of RF-to-mmWave components and subsystems for mission-critical communication networks. We are radio frequency experts who deliver high-performance RF solutions into complex markets.

With an enviable track record of providing high performance, customised solutions within critical communication sectors spanning over 40 years. Filtronic designs and manufactures products that accelerates market entry, reduces whole life and developments costs and delivers sustainable competitive advantage.

We are long-term RF partners to leading technology players in aerospace & defence, telecommunications infrastructure, and critical communications. We deliver innovative solutions are technology leaders from RF to mmWave, and always deliver value for money.

microelectronics manufacturing

Contract microelectronics manufacturing

We manufacture highly integrated components with extreme precision, using our automated microelectronic assembly process. Our manufacturing teams thrive on challenging critical communication projects where the solutions we produce push the boundaries of RF electronics and materials. Producing precision components to client specifications in our 24-hour production facilities, we offer contract microelectronic manufacturing services in both the UK and USA. Providing cost-effective manufacture for both high-volume and high-mix, low-volume products.

Filtronic PLC | Sedgefield

Powered by remarkable people

Filtronic has considerable depth of technology, engineering, manufacturing, and operational management skills across its business operations. Our focus is on creating a high-performance culture through effective employee engagement, excellent career development and resource management. Filtronic employs a special kind of person. They are experts in their field, confident communicators who love to collaborate, solve problems, and step up to a challenge. Our core skills base includes:

  • RF systems engineers
  • MMIC specialists
  • Filter specialists
  • Electronic and PCB layout designers
  • Mechanical design
  • Process engineers
  • Software and firmware experts
Our people
Technical Experts | Filtronic PLC

World class engineering

The Filtronic team has more than 200 years of combined experience in microwave and mmWave product design and integration. Filtronic works with clients to devise complex radio frequency (RF), microwave and mmWave solutions. For more than 40 years, we have designed, manufactured and tested our own high-performance, customised components and sub-systems for use in critical communications applications.

Design Services

Our values

  • Act with integrity; being honest and fair, 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.

Microelectronics Manufacturing

Filtronic delivers world-class product, achieved through a strong quality culture, Six Sigma techniques, high levels of production automation, and traceability.

Manufacturing excellence


Designer and manufacturer of RF, microwave and millimetre-wave products for telecommunications infrastructure, critical communications and aerospace and defence applications.



We offer a wide range of solutions, from individual components to fully integrated, calibrated systems, supported by our IP and in-house knowledge.



Filtronic collaborates in launching North East Advanced Material Electronics cluster group

27 July 2022

Filtronic introduces E-band active diplexers with integral PAs and LNAs

15 June 2022

Filtronic unveiling a new range of Active Diplexers at IMS 2022

Filtronic shows aerospace and defence products and manufacturing services at AOC Europe

6 May 2022