Reduction of electromagnetic radiation from apertures and enclosures using electromagnetic bandgap structures

Mohammed M. Bait-Suwailam, Babak Alavikia, Omar M. Ramahi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Comprehensive study on the source of electromagnetic radiation from apertures placed in conducting screens and enclosure is presented. Novel technique comprising placement of electromagnetic bandgap (EBG) structures immediately around the apertures openings is presented to suppress the surface currents and consequently to reduce the radiation from the apertures. The effectiveness of the proposed technique is demonstrated through several detailed parametric studies and numerical full-wave simulations quantifying the strength of electromagnetic fields in near and far regions from the aperture. In fact, using the EBG structures, more than 20-dB reduction is achieved in the near- and far-field radiation without affecting the aperture size. Finally, a detailed experimental case study from real-world environment is presented to validate the proposed concept.

Original languageEnglish
Article number6731525
Pages (from-to)929-937
Number of pages9
JournalIEEE Transactions on Components, Packaging and Manufacturing Technology
Volume4
Issue number5
DOIs
Publication statusPublished - 2014

Fingerprint

Enclosures
Electromagnetic waves
Energy gap
Radiation
Electromagnetic fields

Keywords

  • Apertures
  • Electromagnetic bandgap (EBG) structures
  • Electromagnetic interference
  • Field leakage
  • Shielding
  • Surface current

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Industrial and Manufacturing Engineering

Cite this

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abstract = "Comprehensive study on the source of electromagnetic radiation from apertures placed in conducting screens and enclosure is presented. Novel technique comprising placement of electromagnetic bandgap (EBG) structures immediately around the apertures openings is presented to suppress the surface currents and consequently to reduce the radiation from the apertures. The effectiveness of the proposed technique is demonstrated through several detailed parametric studies and numerical full-wave simulations quantifying the strength of electromagnetic fields in near and far regions from the aperture. In fact, using the EBG structures, more than 20-dB reduction is achieved in the near- and far-field radiation without affecting the aperture size. Finally, a detailed experimental case study from real-world environment is presented to validate the proposed concept.",
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AU - Ramahi, Omar M.

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AB - Comprehensive study on the source of electromagnetic radiation from apertures placed in conducting screens and enclosure is presented. Novel technique comprising placement of electromagnetic bandgap (EBG) structures immediately around the apertures openings is presented to suppress the surface currents and consequently to reduce the radiation from the apertures. The effectiveness of the proposed technique is demonstrated through several detailed parametric studies and numerical full-wave simulations quantifying the strength of electromagnetic fields in near and far regions from the aperture. In fact, using the EBG structures, more than 20-dB reduction is achieved in the near- and far-field radiation without affecting the aperture size. Finally, a detailed experimental case study from real-world environment is presented to validate the proposed concept.

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