The RF and EM shielding technology industry is essential to the development and deployment of new electronic devices and systems. Radio Frequency (RF) shielding is the industry involved with protecting sensitive devices from radio frequency interference (RFI) preventing information from being stolen, or sensitive electronic devices from being damaged. EM shielding is used to protect people and the environment from harmful electromagnetic interference (EMI).
The applications of RF and EM shielding are wide, from consumer devices to important healthcare equipment. Increasing demand for electronic devices and systems, the need to protect these from interference and radiation, causing device damage, performance degradation and data corruption, the growing adoption of electric vehicles, and the increasing awareness of the potential health risks associated with exposure to electromagnetic radiation, has increased focus in this sector.
There are a variety of different RF and EM shielding technologies available, each with its own advantages and disadvantages. Some of the most common technologies include:
- Metal shielding: The most effective way to block EMI and RFI, but it can be heavy and expensive
- Conductive coatings: Applied to surfaces to provide EMI and RFI shielding. Typically, less expensive, and lighter than metal shielding, but less effective at blocking high-frequency signals
- Ferrite cores: Shield electronic components from EMI and RFI. Relatively inexpensive and lightweight, but not as effective at shielding high-frequency signals or large areas
- Gaskets: Used to seal gaps in enclosures and prevent EMI and RFI from leaking in, generally made of metal or conductive elastomers
- Shielded enclosures: Used to protect electronic devices from EMI. Typically made of metal or a combination of metal and other RF shielding materials
- RF shielding fabrics: Used to create shielded enclosures or to protect electronic devices from EMI
The RF and EM Shielding Technology industry is now commercially mature, and industry focused research and development is being continuously carried out by specialists. This innovation includes conductive paints and coatings, composites for construction, and cloaking materials.
PI-KEM and PI-KEM Hart work alongside industry experts ensuring they have the material compositions and format that they require for the prototyping of new products. Our Thin Films, Nanotech and Powder specialists work with their customers to ensure they meet not only their material specifications, but equally their production schedules, budget, and compliance requirements.