How to control EMI/RFI to optimise your electronic performance

In an increasingly connected world, controlling electromagnetic interference (EMI) and radio frequency interference (RFI) has become a critical issue in guaranteeing the reliability and compliance of electronic equipment. For any company developing electronic devices, integrating a proactive EMI/RFI management strategy right from the design stage is now essential.

Why is EMI/RFI management essential?

What are the common sources of EMI/RFI?

Understanding the origins of electromagnetic and radio frequency interference is essential if we are to anticipate and control it more effectively. In any electronic system, several sources can generate interference:

Fast switching circuits Microcontrollers, processors and other digital circuits operating at high frequencies can cause rapid current peaks, resulting in unwanted electromagnetic emissions.
Tracks and cables On a PCB (printed circuit board) or in a bundle of cables, certain lengths or loops can act as veritable antennae, emitting or receiving interfering signals.
Electric motors and switch-mode power supplies : This equipment naturally generates electromagnetic noise, particularly when switching high-speed loads.
External sources Industrial installations, radio equipment, 5G antennas or radio communication devices can also cause interference to neighbouring equipment.

Every element, however insignificant at first glance, can become a critical point if it is not taken into account at the design stage. A systemic approach is therefore essential to identify all the potential sources of EMI/RFI, and ADDEV Materials can help you implement appropriate solutions.

Our innovative solutions for EMI/RFI control

EMI/RFI management solutions have evolved considerably in response to increasing demands for electronic performance and reliability. At ADDEV Materials, we offer materials that are efficient, compact and easy to integrate into ever more constrained designs.

The most innovative solutions include :

Electromagnetic shielding films Ultra-thin and flexible, they offer excellent conductivity and are easy to apply to electronic boards, connectors or even inside enclosures. They provide effective shielding while limiting the amount of extra weight and space required.
Conductive adhesives and sealants These multifunctional materials ensure both the mechanical assembly of components and the electrical continuity required to block interference. They also simplify assembly by reducing the number of operations.
EMI absorbers These materials absorb the energy of electromagnetic waves rather than simply reflecting them. They are particularly useful in high-frequency devices such as wireless modules, minimising internal noise and external radiation.
Conductive foams and gels These are placed in the interstices of electronic enclosures, ensuring uniform shielding even in complex geometries, while providing protection against moisture, dust and impact.

These technologies enable high levels of protection to be achieved without compromising the compactness, lightness or final design of the product.
By combining several solutions tailored to each critical area, it is possible to build robust, reliable systems that comply fully with international standards.

At ADDEV MaterialsOur expertise in innovative materials and high-performance techniques enables us to help electronics companies to overcome their EMI/RFI challenges.
Our expertise enables us to offer technical solutions tailored to your most complex requirements, while respecting your constraints in terms of lightness, miniaturisation and performance.

Do you have an ongoing project or want to anticipate your EMI/RFI management needs?
Contact our teams to find out how we can help you design your product and find a tailor-made solution.