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Millimeter wave electromagnetic interference shielding by coating expanded polystyrene particles with a copper film using magnetron sputtering

  • Xiaozheng Yu
  • , Zhigang Shen*
  • , Chujiang Cai
  • *Corresponding author for this work
  • Beihang University
  • China National Academy of Nanotechnology and Engineering

Research output: Contribution to journalArticlepeer-review

Abstract

Expanded polystyrene (EPS) particles were coated with copper by magnetron sputtering in order to produce a material suitable for electromagnetic interference (EMI) shielding. Field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray analysis (EDS) results demonstrated the effectiveness of successful copper deposition. The EMI shielding effectiveness (SE) of the Cu-coated EPS particles was measured to be 14-39 dB over a frequency range of 80-110 GHz, suggesting that Cu-coated EPS particles can be used as an effective lightweight millimeter wave EMI shielding material.

Original languageEnglish
Pages (from-to)1438-1441
Number of pages4
JournalVacuum
Volume83
Issue number12
DOIs
StatePublished - 11 Aug 2009

Keywords

  • Electromagnetic interference
  • Expanded polystyrene particles
  • Magnetron sputtering
  • Millimeter wave
  • Shielding effectiveness

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