Discover Exxelia's high-performance microwave ferrites, coaxial, and dielectric resonators for advanced communication systems. Ask now!
To meet the increasingly demanding demand for coaxial resonators, dielectric resonators, and ferrites intended for the isolator and circulator subsystems used in radio communication systems, integrated circuits, amplifiers, and switches.
Key Takeaways: Microwave Ferrites & Coaxial Dielectric Resonators
- Product Portfolio: Exxelia designs custom High-Q microwave ferrites (garnets, spinels) and coaxial dielectric resonators tailored for advanced RF and microwave functions.
- Target Applications: High-reliability passive components for defense, space, telecommunications, and radar systems requiring low insertion loss and high temperature stability.
- Exxelia Qualifications & Expertise: Space-qualified heritage (ESA / MIL-STD standards), full in-house material formulation, manufacturing, and RF testing.
- Custom Solutions: Precision engineering and short lead times for critical high-frequency filtering, circulators, isolators, and frequency control applications.
Exxelia offers a wide range, including:
Coaxial resonators :
Resonators generally used in filters, duplexers, DRO's, and VCO's over a wide frequency range: 300 MHz to 6 GHz. They are available in several dimensions: 2x2, 4x4, 6x6, and up to 12x12 mm, offering the best compromise between impedance, Q factor, and resonance frequency.
Dielectric resonators :
The dielectric resonators are designed to replace resonant cavities in microwave functions such as filters and oscillators. Exxelia, with the support of the ESA and CNES, has developed the E7000 series which offers narrow bandwidth with reduced size. The E7000 dielectric resonator is based on Ba-Mg-Ta materials which combine ultra-high quality factor and the possibility to obtain all temperature coefficients on request. E7000 presents the high performances required for space use in the frequency range of 5 to 32 GHz and ensures up to Qxf > 250,000 at 10 GHz. As one of the few manufacturers producing its own raw materials, Exxelia perfectly masters the production of dielectric resonators. Encouraged by the success of this new range, Exxelia is now able to supply larger batches (up to 20 kg of powder) while retaining the same product properties.
Ferrites :
Ferrites are magnetic materials used in a variety of applications. They are particularly effective in suppressing electromagnetic interference and noise in high-frequency applications, making them indispensable for modern communication systems.
Ferrites are offered in disc, triangle, or specific designs. These materials are based on Exxelia formulations, offering low deltaH (ΔH) conducive to reducing IMD. Their combination with a dielectric material allows for a wide choice of composites (FDA) to miniaturize isolator/circulator designs.
Exxelia's ferrites are distinguished by their exceptional quality and superior performance. These ferrites are made from high-quality materials and benefit from state-of-the-art design and manufacturing processes. They have been tested for use in demanding environments and have demonstrated exceptional reliability in applications up to 40 GHz.
Contact us to help you choose the ferrites that best suit your needs.
Updated at: September 25, 2026.
Published by
Nicolas DABADIE (Head of Business Development Management - GBU Capacitors)
60+
proprietary microwave materials
Garnet and Spinels Microwave Ferrites
3100
employees
13
locations
Across 5 countries: France, USA, Morocco, India and Vietnam
Certified
ISO / EN / AS
All Exxelia sites are ISO9001, EN9100 or AS9100 certified
