By Camille Crouzet, Ph.D., CEO, HYMAG’IN
Introduction
HYMAG’IN offers the additive manufacturing of electromagnetic solutions for electromagnetic compatibility (EMC/EMI), radiofrequency (RF) systems, and ferrites for electronics. HYMAG’IN produces magnetic materials as very fine ferrite powders, and as raw materials for additive manufacturing. In addition to our manufacturing capabilities, we have also integrated an electromagnetic expertise to develop cutting-edge products and propose material tailor-made developments as a service. We address critical markets where electronics is facing miniaturization and connectivity such as aerospace, telecom and automotive.
1. Production of ferrite ultrafine powders
HYMAG’IN developed a patented technology to produce its own magnetic materials as ultrafine ferrite powders, NANOMAG. We propose a range of materials engineered for superior electromagnetic performances by tuning their chemical composition. We propose today two materials on the shelf NANOMAG-Fe and NANOMAG-MnZn.
- NANOMAG-Fe offers outstanding performance for RF absorption in the 0,1 GHz to 30 GHz range. It can be easily integrated into polymers and silicones to build 2D and 3D parts.
- NANOMAG-MnZn belongs to the well-known MnZn ferrite family. Depending on frequency, it can be used for power conversion (transformers, converters) or absorption. NANOMAG-MnZn can be used as a powder, a composite or as a sintered material.
By focusing on ultrafine ferrites, HYMAG’IN helps electronics and RF engineers tackle the challenges of miniaturization and increase in frequency.
2. FILAMAG: additive manufacturing of ferrite-based materials
FILAMAG is HYMAG’IN’s range of advanced materials for additive manufacturing. It includes magnetic pellets and magnetic spools. They are fully compatible with any Fused Deposition Modeling (FDM) printers, including desktop models. Printed parts can be directly used as magnetic composite for EMC and antenna applications.
With FILAMAG, you can print your own magnetic parts whenever and wherever you want.
This approach offers a high degree of control and customization, making FILAMAG a versatile and high-performance solution for engineers facing complex electronics and RF issue.
FILAMAG™-F is a filament for 3D printing composed of a flexible polymer matrix loaded with ferrites. These magnetic ferrites impart unique electromagnetic properties to the filament, enabling efficient wave absorption. These properties are characterized through measurements of dielectric permittivity and magnetic permeability between 100 MHz and 20 GHz.
FILAMAG-T, made from PA6, is soon available. It offers different mechanical properties (rigid) and can handle higher temperatures. It makes FILAMAG-T particularly suitable for challenging environments where robust structural properties are essential.
Additionally, tailor-made materials can be developed upon request, providing fully customized material solutions for specific project requirements. It includes the production of polymer-free and sintered magnetic 3D parts.
3. Electromagnetic expertise: from user specifications to material solutions
HYMAG’IN positions itself not only as a material supplier. We develop electromagnetic expertise to be able to convert specifications coming from electronics and RF engineers into materials and hardware solutions. In this way, we are able to perform electromagnetic characterization and simulation.
- Antenna decoupling
When antennas for Bluetooth, 5G, 6G, and Wi-Fi sit close together, they can interfere with each other and degrade system performances. FILAMAG-F flexible filament absorbs interferences and reduces antenna coupling by 69.4% at common Wi-Fi frequencies, ensuring reliable connectivity and minimal signal distortion. Thanks to its wide frequency coverage, FILAMAG-F delivers consistent results across multiple bands, while the adaptability of 3D printing allows engineer to tailor the design to their device’s unique geometry. Printing compact forms enable easy integration into cramped housings.
- Electromagnetic interferences: cavity resonance
Cavity resonance is a phenomenon that appears when your electronics is set in a metal housing. Small interferences coming from your electronics can lead to the resonance of the box, leading to important interferences. Placing FILAMAG printed parts inside these enclosures allow to suppress echoes, reduce internal reflections and so significantly reduce the interferences.
- 3D printed ferrite cores
Ferrite cores are basic electronic components used as transformers, converters and inductors in everyday electronics. Ferrite cores are produced in millions of tons per year for mass market application (automotive, consumer electronics, …). This mass production has shown limitations in the number of geometries available and their integration into electronics for small and mid-size markets. To address this issue, HYMAG’IN is currently developing the additive manufacturing of 3D shaped ferrites. We are developing a dedicated technology able to 3D print polymer-free magnetic materials, increasing permeability and magnetic saturation. Our objective is to let our customers print the geometry they need for their electronics, earn time & money with fast prototyping, and improve performances by the design.
About the Author:
Camille Crouzet is CEO – Sales & Marketing of HYMAG’IN. As a co-founder and inventor of the company’s technology, he devotes his time to converting the technology into value for customers, using his technical background to translate customer needs into value propositions for them.
About HYMAG’IN
Founded in 2019 as a spin-off from ISTerre laboratory (CNRS/Université Grenoble Alpes), HYMAG’IN initially set out to tackle environmental challenges by harnessing ultrafine magnetite particles for soil and water remediation. In 2022, the French startup executed a strategic pivot, recognizing the exceptional electromagnetic properties of magnetite and ferrites, and shifted its core business toward managing electromagnetic interference (EMI), particularly within aeronautics and high-tech sectors.
To support this transition, HYMAG’IN successfully raised €2.2 million in late 2023. The funding was dedicated to scaling up production capacities, reinforcing operational structures, and preparing for significant sales growth expected to commence in 2025.
This milestone was accompanied by substantial team expansion, reflecting the company’s ambition to scale as it evolves beyond its origins as a research-focused startup to be positioned as an innovative industrial player internationally. In 2024, three new full-time employees joined the firm: a RF engineer tasked with enhancing product performance and developing cutting-edge electromagnetic solutions, a sales representative dedicated to accelerating market penetration, and an industrial development manager specifically hired to oversee and drive forward the industrialization efforts. The strategic recruitment supports the startup’s commitment to transitioning from laboratory innovation to robust industrial production.
With its first sales achieved in 2024 and active participation in numerous industry events, including more than fifteen planned for 2025, HYMAG’IN continues to build momentum, progressively establishing itself as a key European innovator in electromagnetic solutions. The company is located in Grenoble in southeastern France. For more info, see www.hymagin.com and follow them on linkedin : https://www.linkedin.com/company/hymagin/ .
