Benefits of using conductive plastics in shielding configurations to reduce radiated electromagnetic interference

Conductive plastic cabinets have become an alternative to traditional metallic enclosures to shield electronic equipment from electromagnetic interference. These materials allow a wide range of conductivities that can satisfy any particular design. In this article, the benefits of using conductive p...

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Published inMicrowave and optical technology letters Vol. 52; no. 11; pp. 2476 - 2480
Main Authors Lozano-Guerrero, Antonio José, Robinson, Martin Paul, Díaz-Morcillo, Alejandro, Balbastre-Tejedor, Juan Vicente
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.11.2010
Subjects
conductive plastic
Electromagnetic interference
enclosure
Enclosures
Microwaves
On-line systems
Polymers
Q factor
Q factors
radiated immunity
Shielding
shielding effectiveness
Shields
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Summary:Conductive plastic cabinets have become an alternative to traditional metallic enclosures to shield electronic equipment from electromagnetic interference. These materials allow a wide range of conductivities that can satisfy any particular design. In this article, the benefits of using conductive plastics in enclosure configurations have been evaluated. A design with an outer metallic layer and an inner layer of conductive dielectric can provide advantages from both materials as a conductive plastic box is lighter and its shielding properties may have advantages over metallic materials. An optimum for resonance suppression has been obtained for the hybrid structure. These shielding structures have been evaluated with the help of measurements and simulations. Shielding effectiveness and Q factor have been used to compare the capabilities of these enclosures with the metallic ones showing their benefits and possibilities. Resonance suppression and shielding levels provided by conductive plastics are discussed. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:2476–2480, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25499
Bibliography:istex:6581D495F617B567EEC3EF9AF454173357B8FE7B
ark:/67375/WNG-XVKPR30J-4
ArticleID:MOP25499
Physical Layer Group, Department of Electronics, University of York
Programa de formación y movilidad del personal docente e investigador de la Universidad Politécnica de Cartagena - No. PMPDI-UPCT-2007
Fundación Séneca, Agencia Regional de Ciencia y Tecnología - No. 00700/PPC/04
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SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0895-2477
1098-2760
1098-2760
DOI:10.1002/mop.25499