Ferrites, Dielectric & Coaxial Resonators, and Frequency Tuning Components for RF and Microwave Applications

Exxelia announces the release of two updated catalogues dedicated to microwave and RF design:
Microwave Materials – Ferrites, Dielectric & Coaxial Resonators
Frequency Tuning Components – Trimmer Capacitors & Microwave Tuning
Together, these catalogues provide a comprehensive overview of Exxelia’s material expertise and frequency control solutions for engineers and buyers working on non-reciprocal devices, filters, oscillators and microwave subsystems.
The Microwave Materials catalogue consolidates Exxelia’s capabilities in ferrite and dielectric technologies, covering:
Iron garnet and spinel ferrites (yttrium-, magnesium-, nickel- and lithium-based compositions)
Ferrite/dielectric assemblies (FDA)
Dielectric resonators (E2000 to E7000 series)
Coaxial resonators
The document details key electrical and magnetic parameters such as saturation magnetization (Ms), gyromagnetic line width (ΔH), effective line width (ΔHeff), dielectric constant (ε’) and loss tangent. Frequency coverage extends from 0.1 GHz to beyond 30 GHz, addressing insertion loss, power handling and temperature stability constraints.
Manufacturing capabilities include in-house powder preparation, ceramic pressing and firing, precision machining, polishing and metallization. Standard and custom geometries are available to support circulator, isolator, filter and DRO designs.

This edition also introduces EPSILON 21, a high-permittivity microwave ferrite developed for isolator and circulator applications. It is designed to support compact device architectures while maintaining controlled magnetic and dielectric performance. Technical characteristics are provided in the ferrite section to assist material selection and RF modeling.
The Frequency Tuning Components – Trimmer Capacitors & Microwave Tuning catalogue complements the materials offer with adjustable solutions for fine frequency control.
It presents Exxelia’s range of:
Microwave trimmer capacitors
Air and ceramic dielectric variable capacitors
Precision tuning elements for RF and microwave assemblies
The catalogue includes capacitance ranges, voltage ratings, Q factors, mechanical configurations and adjustment characteristics. These components are intended for applications requiring stable and repeatable frequency trimming in oscillators, filters, radar systems, communication equipment and instrumentation.
By combining material engineering and frequency tuning components, Exxelia provides a coherent set of solutions addressing both core microwave materials and system-level adjustment needs.
Both catalogues are now available for download on Exxelia’s website:
Microwave Materials – Ferrites, Dielectric & Coaxial Resonators
Frequency Tuning Components – Trimmer Capacitors & Microwave Tuning
Engineers and procurement teams can access detailed technical tables, dimensional specifications and ordering information to support current and future RF developments.
For application-specific requirements or customized configurations, Exxelia’s technical teams are available to review project constraints and propose suitable material and component combinations.
18 Series
Space qualified
High reliability screening dedicated to space applications
50
ESA
QPL or EPPL series
1.2mm
Miniature RF tuning screw
Fully custom solutions for application up to Ka Band (40Ghz)
60+
proprietary microwave materials
Garnet and Spinels Microwave Ferrites