Passive and active signal conditioning specialists

Our engineering team are industry experts in designing high performance filters, combiners, and amplifiers that deliver world-class performance and reliability.

Passive & active RF solutions

Filtronic has a long history in the design and manufacture of leading-edge coverage enhancement products for the wireless industry. We are a key supplier of advanced high performance RF communications products to the telecommunications infrastructure and critical communications markets. Our products are used in wireless communication equipment, point-to-point communication systems and adjacent aerospace and defence sectors.

GaN amplifiers


6-11GHz
GaN technology offers significant performance advantages in the application of point-to-point microwave and backhaul transceivers.
  • Ultra-compact GaN amplifier
  • For point-to-point microwave and backhaul
  • A range of extremely compact, high-efficiency amplifier modules based on our proprietary GaN power FET technology
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Custom filters


0-110GHz
Filtronic produces a range of filters, including metal cavity filters, ceramic, combline, interdigital, lumped element, suspended substrate, waveguide and thin-film.
  • Experts in SWAP reductions
  • Range of environmental conditions
  • Material expertise
  • Bespoke designs, working to a customer’s form factor
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Custom combiners


<6GHz
Using highly skilled and experienced engineers with an innovative approach, we offer bespoke design for all our product range including filters, combiners, and amplifiers. We are experts in:
  • Maximise base station investment
  • Delivering highest-in-class performance
  • Combiners for telecoms and critical communications
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Interference mitigation filters


0-110GHz
Interference suppression filters provide a simple, cost effective and low loss solution for minimising spectral emissions and attenuating interference signals.
  • Rejection with minimal loss of usable spectrum
  • Easy to install
  • Minimal size and weight
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Ceramic filters


0-10GHz
Filtronic have a rich history in ceramic filter design and manufacture. Filter capability includes TE, TEM, TM, Quasi-T, ceramic combline etc. dependent upon the required filter performance and size.
  • Ability to design and manufacture
  • Higher Q, lower insertion loss
  • Better spectral efficiency
  • Narrow guardband
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Combline filters


100MHz-20GHz
Traditionally supporting the wireless infrastructure business, where typical demands include low loss, tight rejection specifications, high power and low passive intermodulation
  • Bandwidths of 1% to 50% of the centre frequency
  • Contiguous and non-contiguous types available
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News

Fresh look for Filtronic

14 July 2021

US West Coast partnership for Filtronic

8 July 2021

North East MP visits Filtronic’s world-class manufacturing team in Sedgefield

5 July 2021

Filtronic re-shores manufacturing of critical communications product from China to USA

23 June 2021