Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study

Mohammed M. Bait-Suwailam; Dawood Mohammed Al-Abri; Abbas Teirab; Joseph Jervase; Zia Nadir

doi:10.1109/IEEEGCC.2015.7060017

Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study

Mohammed M. Bait-Suwailam, Dawood Mohammed Al-Abri, Abbas Teirab, Joseph Jervase, Zia Nadir

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

In this paper, electromagnetic radiation leakage through airflow openings found in modern personal computers and mobile electronic devices (i.e., enclosures) is experimentally studied in the low frequency regime. Three different designs of enclosure's covers are assessed through experimental work. The three airflow covers of the shielding enclosure cases comprise the use of all holes (case 1), hexagon (case 2), slotted cover (case 3), and a reference case of a solid cover with no openings. Comparison is then made between the designed covers in reference to the solid cover that mimics a closed enclosure. The measurements are conducted based on capturing the amount of power transfer, through the transmission coefficient S21 , in both near vicinity and far-region from the enclosure's opening. It was found that hexagonal airflow cover provides better shielding effectiveness than cases 1 and 3, especially in the near-vicinity region to the enclosure.

Original language	English
Title of host publication	2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781479984220
DOIs	https://doi.org/10.1109/IEEEGCC.2015.7060017
Publication status	Published - Mar 12 2015
Event	2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015 - Muscat, Oman Duration: Feb 1 2015 → Feb 4 2015

Other

Other	2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015
Country	Oman
City	Muscat
Period	2/1/15 → 2/4/15

Keywords

Electromagnetic leakage
enclosures
radiated emissions
shielding effectiveness

ASJC Scopus subject areas

Energy(all)
Engineering(all)
Computer Science(all)

Access to Document

10.1109/IEEEGCC.2015.7060017

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Bait-Suwailam, M. M., Al-Abri, D. M., Teirab, A., Jervase, J., & Nadir, Z. (2015). Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study. In 2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015 [7060017] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEEEGCC.2015.7060017

Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures : An experimental study. / Bait-Suwailam, Mohammed M.; Al-Abri, Dawood Mohammed; Teirab, Abbas; Jervase, Joseph ; Nadir, Zia.

2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7060017.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bait-Suwailam, MM , Al-Abri, DM, Teirab, A, Jervase, J & Nadir, Z 2015, Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study. in 2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015., 7060017, Institute of Electrical and Electronics Engineers Inc., 2015 IEEE 8th GCC Conference and Exhibition, GCCCE 2015, Muscat, Oman, 2/1/15. https://doi.org/10.1109/IEEEGCC.2015.7060017

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abstract = "In this paper, electromagnetic radiation leakage through airflow openings found in modern personal computers and mobile electronic devices (i.e., enclosures) is experimentally studied in the low frequency regime. Three different designs of enclosure's covers are assessed through experimental work. The three airflow covers of the shielding enclosure cases comprise the use of all holes (case 1), hexagon (case 2), slotted cover (case 3), and a reference case of a solid cover with no openings. Comparison is then made between the designed covers in reference to the solid cover that mimics a closed enclosure. The measurements are conducted based on capturing the amount of power transfer, through the transmission coefficient S21 , in both near vicinity and far-region from the enclosure's opening. It was found that hexagonal airflow cover provides better shielding effectiveness than cases 1 and 3, especially in the near-vicinity region to the enclosure.",

keywords = "Electromagnetic leakage, enclosures, radiated emissions, shielding effectiveness",

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N2 - In this paper, electromagnetic radiation leakage through airflow openings found in modern personal computers and mobile electronic devices (i.e., enclosures) is experimentally studied in the low frequency regime. Three different designs of enclosure's covers are assessed through experimental work. The three airflow covers of the shielding enclosure cases comprise the use of all holes (case 1), hexagon (case 2), slotted cover (case 3), and a reference case of a solid cover with no openings. Comparison is then made between the designed covers in reference to the solid cover that mimics a closed enclosure. The measurements are conducted based on capturing the amount of power transfer, through the transmission coefficient S21 , in both near vicinity and far-region from the enclosure's opening. It was found that hexagonal airflow cover provides better shielding effectiveness than cases 1 and 3, especially in the near-vicinity region to the enclosure.

AB - In this paper, electromagnetic radiation leakage through airflow openings found in modern personal computers and mobile electronic devices (i.e., enclosures) is experimentally studied in the low frequency regime. Three different designs of enclosure's covers are assessed through experimental work. The three airflow covers of the shielding enclosure cases comprise the use of all holes (case 1), hexagon (case 2), slotted cover (case 3), and a reference case of a solid cover with no openings. Comparison is then made between the designed covers in reference to the solid cover that mimics a closed enclosure. The measurements are conducted based on capturing the amount of power transfer, through the transmission coefficient S21 , in both near vicinity and far-region from the enclosure's opening. It was found that hexagonal airflow cover provides better shielding effectiveness than cases 1 and 3, especially in the near-vicinity region to the enclosure.

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KW - radiated emissions

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Electromagnetics interference (EMI) radiation from airflow openings in personal computers shielded enclosures: An experimental study

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