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Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency

Rapid development of the electronic industry has increased the frequency of communication devices which lead to higher intensity of electromagnetic (EM) wave production. Too much exposure of EM wave can cause harm to health besides imposing disturbances in performances of other electronic devices. H...

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Main Authors: Mohamad Ashry, Jusoh, Yeow, Y. K., Rodziah, Nazlan, Fahmiruddin, Esa
Format: Article
Language:English
Published: Electromagnetics Academy 2019
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/27473/1/Electromagnetic%20shielding%20effectiveness%20of%20gypsum-magnetite%20composite.pdf
http://umpir.ump.edu.my/id/eprint/27473/
https://doi.org/10.2528/pierl19051401
https://doi.org/10.2528/pierl19051401
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spelling my.ump.umpir.274732020-03-29T23:39:34Z http://umpir.ump.edu.my/id/eprint/27473/ Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency Mohamad Ashry, Jusoh Yeow, Y. K. Rodziah, Nazlan Fahmiruddin, Esa TK Electrical engineering. Electronics Nuclear engineering TP Chemical technology Rapid development of the electronic industry has increased the frequency of communication devices which lead to higher intensity of electromagnetic (EM) wave production. Too much exposure of EM wave can cause harm to health besides imposing disturbances in performances of other electronic devices. Hence, this research studies the structural and electromagnetic properties of materials that can act as electromagnetic shielding material at x-band frequency. Different compositions of magnetite powder/Fe3O4 (0, 10, 20 and 100 wt.%) were prepared to be dispersed in gypsum powders to form gypsum-magnetite composites. The structural properties of composites were characterized using Scanning Electron Microscopy (SEM) to observe homogeneity of the composites. The X-Ray Diffraction (XRD) was used to determine phase composition of the gypsum-magnetite composites. Scattering parameters of reflection coefficient, S11, and transmission coefficient, S21, were measured using Vector Network Analyzer (VNA). These parameters will be used to calculate the shielding effectiveness (SE) of gypsum-magnetite composite at x-band frequency. The results show that the total SE of the gypsum-magnetite composites were increased by adding magnetite powders. Electromagnetics Academy 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/27473/1/Electromagnetic%20shielding%20effectiveness%20of%20gypsum-magnetite%20composite.pdf Mohamad Ashry, Jusoh and Yeow, Y. K. and Rodziah, Nazlan and Fahmiruddin, Esa (2019) Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency. Progress in Electromagnetics Research Letters, 86. pp. 21-26. ISSN 1937-6480 https://doi.org/10.2528/pierl19051401 https://doi.org/10.2528/pierl19051401
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
TP Chemical technology
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
TP Chemical technology
Mohamad Ashry, Jusoh
Yeow, Y. K.
Rodziah, Nazlan
Fahmiruddin, Esa
Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
description Rapid development of the electronic industry has increased the frequency of communication devices which lead to higher intensity of electromagnetic (EM) wave production. Too much exposure of EM wave can cause harm to health besides imposing disturbances in performances of other electronic devices. Hence, this research studies the structural and electromagnetic properties of materials that can act as electromagnetic shielding material at x-band frequency. Different compositions of magnetite powder/Fe3O4 (0, 10, 20 and 100 wt.%) were prepared to be dispersed in gypsum powders to form gypsum-magnetite composites. The structural properties of composites were characterized using Scanning Electron Microscopy (SEM) to observe homogeneity of the composites. The X-Ray Diffraction (XRD) was used to determine phase composition of the gypsum-magnetite composites. Scattering parameters of reflection coefficient, S11, and transmission coefficient, S21, were measured using Vector Network Analyzer (VNA). These parameters will be used to calculate the shielding effectiveness (SE) of gypsum-magnetite composite at x-band frequency. The results show that the total SE of the gypsum-magnetite composites were increased by adding magnetite powders.
format Article
author Mohamad Ashry, Jusoh
Yeow, Y. K.
Rodziah, Nazlan
Fahmiruddin, Esa
author_facet Mohamad Ashry, Jusoh
Yeow, Y. K.
Rodziah, Nazlan
Fahmiruddin, Esa
author_sort Mohamad Ashry, Jusoh
title Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
title_short Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
title_full Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
title_fullStr Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
title_full_unstemmed Electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
title_sort electromagnetic shielding effectiveness of gypsum-magnetite composite at x-band frequency
publisher Electromagnetics Academy
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/27473/1/Electromagnetic%20shielding%20effectiveness%20of%20gypsum-magnetite%20composite.pdf
http://umpir.ump.edu.my/id/eprint/27473/
https://doi.org/10.2528/pierl19051401
https://doi.org/10.2528/pierl19051401
_version_ 1662754769323687936
score 13.211869

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