RF, electronic warfare and AESA radar sub-systems

High performance aerospace and defence microwave sub-systems

Filtronic designs and manufactures complex transmit and receive modules (TRMs), filters and other RF components and sub-systems for aerospace and defence applications. We also provide contract manufacturing services for clients, producing and testing their precision components at scale to individual specifications in our state-of-the-art facilities.

When we design, develop and manufacture RF, microwave or mmWave components for defence applications, we work collaboratively with clients to build trust, communicate openly, ensure compliance, and deliver exemplary products that provide reliable, best-in-class performance.

We have a proven performance record and a continuous improvement culture, currently providing a range of market-leading contract manufacturing services to some of the globe’s largest defence primes. We are considered an integral supply chain partner, recently winning an award for outstanding supply chain contribution.

Filtronic's complete solution for the aerospace and defence sector

Customised aerospace and defence technology

Filtronic has invested in full turnkey manufacturing operations to produce intricate components at high-volume at our UK site.

Filtronic provides customised solutions for complex frequency conversion, filtering and high power amplifiers for applications including tuners and jammers. Our expertise in hybrid design and assembly allows us to provide uniquely small and thermally efficient modules and sub-systems for harsh and mass-critical environments.


Long-term partnerships built on excellence

Our mission is to build sustainable partnerships with our clients in the aerospace and defence sector. We commit to the long-cycle collaborative development processes that are necessary before any volume manufacturing can begin. Our world-leading design and engineering expertise, state-of-the-art microelectronic manufacturing facilities and rigorous testing capabilities deliver technically advanced RF components and sub-systems across multi-year programmes.

For the aerospace and defence industry, we design, manufacture and test products for a range of advanced sub-systems, including:

AESA radar TRM modules

Transmit and receive modules are the core components of an active electronically scanned array radar (AESA). Using microwaves this latest generation radar system enables the electronic steering of radio waves in multiple directions without moving the antenna. The TRM modules allow multiple signals to be transmitted and received simultaneously.

Electronic warfare (EW)

Electronic warfare utilises the electromagnetic spectrum—signals such as radio or radar—to sense, protect, and communicate. It also enables the capability to disrupt RF or radar signals. Filtronic’s capabilities range a wide number of use cases including jamming and electronic countermeasures (ECM).

Unmanned aerial vehicles (UAV)

Filtronic has a range of capabilities within the radio and communications systems and subsystems of unmanned vehicles and drones. These solutions can be applied at ground station as well as on the vehicle and to counter UAV’s.


Co-site interference mitigation

One of the primary challenges within defence communications is the risk of interference caused by malicious users. Filtronic is an expert in interference mitigation, with a track record of recognition and response. Capabilities include the resolution and reporting of interference, whether they are intentional, such as signal jamming or unintentional sources.

We also design, manufacture and test products for

Command, control, communications, computers, intelligence, surveillance and reconnaissance (C4ISR) – multifunction RF systems and sub-systems, satellite constellation, anti-access area denial (A2/AD)

Unmanned systems and counter unmanned systems

Ultra-wide band digital systems

RF products for aerospace and defence

Transmit and receive modules

Our transmit and receive modules (TRM’s) are traditionally used in electronically scanned radar systems. Transmit and receive modules provide amplification and electronic beam steering and can be applied in radar or communication systems requiring a steerable antenna. Our engineers have the experience and capability to design and manufacture our...

Front end modules

Front end modules are one of the most important parts of a RF System, Filtronic has extensive experience in creating high performance modules that are placed between the antenna and the digital baseband section of a wireless system. Front end modules are available in various configurations based on the...

Custom filters

Filtronic has extensive knowledge and expertise in the design, development and production of custom filters that dates back to 1977. Our custom filters products include metal cavity filters, ceramic, combline, interdigital, lumped element, suspended substrate, waveguide and thin-film filters. We are experts in filter topology, offering rapid prototyping and...

Switched filter banks

Switched Filter Banks consist of a combination of switches and filters integrated into a single module. Integrating filter and switch components in a single module eliminates transitions between circuits, providing for optimal matching. Filtronic devices improve overall performance, including better insertion loss, flatness and voltage standing wave ratio (VSWR)....

Success stories

TRM for aerospace & defence

Four channel, ultra-high-capacity transceiver module

Box build electronic warfare, designed for volume

Latest news for the aerospace and defence sector

Article 01.10.2021

Technology leadership is key to building robust, home-grown supply chains

Article 01.09.2021

Outsourcing microelectronics assembly or making in-house — what are the trade-offs?

News 07.09.2021

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