| Titre : |
Well protected against electromagnetic interference : Ensure the electromagnetic compatibility of wireless devices with special plastics |
| Type de document : |
texte imprimé |
| Auteurs : |
Marnik Vaes, Auteur ; Leen-Pieter Deurloo, Auteur ; Martin Sas, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 41-43 |
| Langues : |
Anglais (eng) |
| Catégories : |
Blindage (électricité)
Conduction électrique
Interférences électromagnétiques
Matières plastiques -- Moulage par injection
Matières plastiques dans les équipements électriques et électroniques
Polycarbonates
Technologie médicale
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The increasing miniaturization of electronics, in combination with the higher demand for embedded wireless connectivity features, creates challenges regarding electromagnetic compatibility (EMC) via electromagnetic susceptibility (EMS) and generated electromagnetic interference (EMI). Thermoplastic compounds with integrated electrical conductivity offer a potential solution to resolve EMI, EMS and electrostatic discharge challenges. These thermoplastic materials can deliver the appropriate level of electromagnetic shielding for electronics, while providing freedom to design complex geometries and opportunities to streamline processing by avoiding secondary operations. |
| Note de contenu : |
- Complex problem definition
- Faraday cage for sensitive components
- Light-weighting alternatives to aluminum
- Inherent EMI shielding
- Adequate injection molding technology
- Fig. 1: EMC-radiated emissions limits in terms of shielding effectiveness in dB based on EN 55011:2016, EN 55032:2015 and IEC EN 60601-1-2:2015 with examples of wireless technologies radiating RF power levels. Range of LNP Faradex compound shielding effectiveness is highlighted
- Fig. 2 : SEM analysis illustrates inferior dispersal and good dispersion of conductive fibers in molded polycarbonate parts. The distribution can be optimized by appropriate processing parameters and injection molding machines (PC resin)
- Fig 3 : Comparison of key features for the different shielding methods and materials
- Table 1 : Typical RF power performance for common wireless devices expected to interfere with healthcare environments |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35105 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 111, N° 1 (2021) . - p. 41-43
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