Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall

Sedigheh Vaezikakhki; Seyed Saeid Mosavinejad; Mehdi Bahadorzadeh

doi:doi:10.11648/j.ajece.20190302.11

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Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall

Sedigheh Vaezikakhki, Seyed Saeid Mosavinejad, Mehdi Bahadorzadeh

Published in American Journal of Electrical and Computer Engineering (Volume 3, Issue 2)

Received: 21 April 2019 Accepted: 23 July 2019 Published: 14 August 2019

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Abstract

This paper propose a new method for improving shielding effectiveness (SE) of a rectangular enclosure with multiple circular apertures. In this method in order to compensate the effects of the apertures on (SE) parameter, we use two metallic walls each containing apertures instead of the one wall. By using two walls for shielding an enclosure, the shielding effectiveness of the enclosure will improve. The numerical simulation uses a symmetric condensed node of TLM – TD (Transmission line Modeling Method – Time Domain) and subsequent Fourier Transform and the result was verified by HFSS and CST software. We obtain the shielding effectiveness response to an electric field impulsive excitation. It is shown that field polarization and enclosure direction has a noticeable effect on SE that should be considered in SE calculations. The effect of different parameters and improving the shielding effectiveness of a metallic enclosure with extra wall is studied. An optimization of the influence of the place of apertures in the walls and the diameter of circles on two walls is presented.

Published in	American Journal of Electrical and Computer Engineering (Volume 3, Issue 2)
DOI	10.11648/j.ajece.20190302.11
Page(s)	53-57
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Shielding Effectiveness, EMC, TLM, Extra Shielding Wall

References

[1]	G. Cerri, R. D. Leo, V. M. Primiani, and M. Righetti, “Field penetration into metallic enclosures through slots excited by ESD,” IEEE Trans. Electromagnetic Compatibility, Vol. EMC-36, No. 2, pp. 110-1 16, May. 1999.
[2]	G. Cerri, R. D. Leo and V. M. Primiani, “Theoretical and experimental evaluation of the electromagnetic radiation from apertures in shielded enclosures,” IEEE Trans Electromagnetic Compatibility., Vol. EMC-34, No. 4, pp. 423-432, November 1992.
[3]	M. Edrisi and W. K. Chan, “EMC methodology for numerical electric field computation inside enclosure with aperture,” Electronics Letters, Vol. 35, pp. 1233- 1235, 1999.
[4]	A. R Attari, K. Barkeshli, “Application of the Transmission Line Matrix Method to the Calculation of the Shielding Effectiveness for Metallic Enclosures,” Palais des congrès Acropolis, France, November12-14, 2002.
[5]	M. Bahadorzadeh, M. Naser. Moghaddasi, “Improving the shielding effectiveness of a rectangular metallic enclosure with aperture by using extra shielding wall,” IEEE Trans. Montreal, QC, July 2006.
[6]	J. L. SiIveiraP, S. Benhassine', L. Pichon' and A. Raizer, ” Analysis of the shielding effectiveness of a rectangular enclosure with apertures by TLM-TD,” Fourth International Conference on Computation in Electromagnetics (CEM 2002), 8-11 APRIL 2002, BOURNEMOUTH, UK.
[7]	M. Bahadorzadeh, A. A. Lotfi-Neyestanak "A novel and efficient technique for improving shielding effectiveness of a rectangular enclosure using optimized aperture load Authors" Journal Elektronika ir Elektrotechnika, Volume 18, Issue 10, Pages 89-92.
[8]	A. Shourvarzi, and M. Joodaki, “A network of ports to estimate shielding effectiveness of an enclosure with apertures,” in Proc. Electromagn. Compat. Eur., 2016, pp. 626–630.
[9]	A. Shourvarzi, and M. Joodaki, “Using Aperture Impedance for Shielding Effectiveness Estimation of a Metallic Enclosure with Multiple Apertures on Different Walls Considering Higher Order Modes,” IEEE Trans. Electromagnetic Compatibility, vol. PP, issue: 99, 2017.
[10]	A. Shourvarzi, and M. Joodaki, “Shielding effectiveness estimation of an enclosure with an arbitrary shape aperture”, EMC Europe 2017.
[11]	Nie, B. L. and P. A. Du, “An efficient and reliable circuit model for the shielding effectiveness prediction of an enclosure with an aperture,” IEEE Transactions on Electromagnetic Compatibility, Vol. 57, No. 3, 357–364, 2015.
[12]	Yin, M. C. and P. A. Du, “An improved circuit model for the prediction of the shielding effectiveness and resonances of an enclosure with apertures,” IEEE Transactions on Electromagnetic Compatibility, Vol. 58, No. 2, 448–456, 2016.
[13]	Dehkhoda, P., A. Tavakoli, and M. Azadifar, “Shielding effectiveness of an enclosure with finite wall thickness and perforated opposing walls at oblique incidence and arbitrary polarization by GMMoM,” IEEE Transactions on Electromagnetic Compatibility, Vol. 54, No. 4, 792–805, 2012.
[14]	S. Celozzi, R. Araneo, G. Lovat, Electromagnetic shielding, Hoboken, New Jersey: Wiley & Sons, pp. 42-46, 2008.
[15]	M. P. Robinson, T. M. Benson, C. Christopoulos, J. F. Dawson, M. D. Ganley, A. C. Marvin, S. J. Porter, D. W. P. Thomas, "Analytical formulation for the shielding effectiveness of enclosures with apertures", IEEE Trans. Electromagn. Compat., vol. 40, no. 3, pp. 240-248, Aug. 1998.

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APA Style

Sedigheh Vaezikakhki, Seyed Saeid Mosavinejad, Mehdi Bahadorzadeh. (2019). Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall. American Journal of Electrical and Computer Engineering, 3(2), 53-57. https://doi.org/10.11648/j.ajece.20190302.11

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ACS Style

Sedigheh Vaezikakhki; Seyed Saeid Mosavinejad; Mehdi Bahadorzadeh. Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall. Am. J. Electr. Comput. Eng. 2019, 3(2), 53-57. doi: 10.11648/j.ajece.20190302.11

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AMA Style

Sedigheh Vaezikakhki, Seyed Saeid Mosavinejad, Mehdi Bahadorzadeh. Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall. Am J Electr Comput Eng. 2019;3(2):53-57. doi: 10.11648/j.ajece.20190302.11

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@article{10.11648/j.ajece.20190302.11,
  author = {Sedigheh Vaezikakhki and Seyed Saeid Mosavinejad and Mehdi Bahadorzadeh},
  title = {Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall},
  journal = {American Journal of Electrical and Computer Engineering},
  volume = {3},
  number = {2},
  pages = {53-57},
  doi = {10.11648/j.ajece.20190302.11},
  url = {https://doi.org/10.11648/j.ajece.20190302.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajece.20190302.11},
  abstract = {This paper propose a new method for improving shielding effectiveness (SE) of a rectangular enclosure with multiple circular apertures. In this method in order to compensate the effects of the apertures on (SE) parameter, we use two metallic walls each containing apertures instead of the one wall. By using two walls for shielding an enclosure, the shielding effectiveness of the enclosure will improve. The numerical simulation uses a symmetric condensed node of TLM – TD (Transmission line Modeling Method – Time Domain) and subsequent Fourier Transform and the result was verified by HFSS and CST software. We obtain the shielding effectiveness response to an electric field impulsive excitation. It is shown that field polarization and enclosure direction has a noticeable effect on SE that should be considered in SE calculations. The effect of different parameters and improving the shielding effectiveness of a metallic enclosure with extra wall is studied. An optimization of the influence of the place of apertures in the walls and the diameter of circles on two walls is presented.},
 year = {2019}
}

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TY  - JOUR
T1  - Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall
AU  - Sedigheh Vaezikakhki
AU  - Seyed Saeid Mosavinejad
AU  - Mehdi Bahadorzadeh
Y1  - 2019/08/14
PY  - 2019
N1  - https://doi.org/10.11648/j.ajece.20190302.11
DO  - 10.11648/j.ajece.20190302.11
T2  - American Journal of Electrical and Computer Engineering
JF  - American Journal of Electrical and Computer Engineering
JO  - American Journal of Electrical and Computer Engineering
SP  - 53
EP  - 57
PB  - Science Publishing Group
SN  - 2640-0502
UR  - https://doi.org/10.11648/j.ajece.20190302.11
AB  - This paper propose a new method for improving shielding effectiveness (SE) of a rectangular enclosure with multiple circular apertures. In this method in order to compensate the effects of the apertures on (SE) parameter, we use two metallic walls each containing apertures instead of the one wall. By using two walls for shielding an enclosure, the shielding effectiveness of the enclosure will improve. The numerical simulation uses a symmetric condensed node of TLM – TD (Transmission line Modeling Method – Time Domain) and subsequent Fourier Transform and the result was verified by HFSS and CST software. We obtain the shielding effectiveness response to an electric field impulsive excitation. It is shown that field polarization and enclosure direction has a noticeable effect on SE that should be considered in SE calculations. The effect of different parameters and improving the shielding effectiveness of a metallic enclosure with extra wall is studied. An optimization of the influence of the place of apertures in the walls and the diameter of circles on two walls is presented.
VL  - 3
IS  - 2
ER  -

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Author Information

Sedigheh Vaezikakhki

Faculty of Engineering, Islamic Azad University, Mashhad, Iran
Seyed Saeid Mosavinejad

Faculty of Engineering, Islamic Azad University, Mashhad, Iran
Mehdi Bahadorzadeh

Faculty of Engineering, Islamic Azad University, Mashhad, Iran

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APA Style

Sedigheh Vaezikakhki, Seyed Saeid Mosavinejad, Mehdi Bahadorzadeh. (2019). Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall. American Journal of Electrical and Computer Engineering, 3(2), 53-57. https://doi.org/10.11648/j.ajece.20190302.11

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ACS Style

Sedigheh Vaezikakhki; Seyed Saeid Mosavinejad; Mehdi Bahadorzadeh. Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall. Am. J. Electr. Comput. Eng. 2019, 3(2), 53-57. doi: 10.11648/j.ajece.20190302.11

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AMA Style

Sedigheh Vaezikakhki, Seyed Saeid Mosavinejad, Mehdi Bahadorzadeh. Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall. Am J Electr Comput Eng. 2019;3(2):53-57. doi: 10.11648/j.ajece.20190302.11

Copy | Download

@article{10.11648/j.ajece.20190302.11,
  author = {Sedigheh Vaezikakhki and Seyed Saeid Mosavinejad and Mehdi Bahadorzadeh},
  title = {Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall},
  journal = {American Journal of Electrical and Computer Engineering},
  volume = {3},
  number = {2},
  pages = {53-57},
  doi = {10.11648/j.ajece.20190302.11},
  url = {https://doi.org/10.11648/j.ajece.20190302.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajece.20190302.11},
  abstract = {This paper propose a new method for improving shielding effectiveness (SE) of a rectangular enclosure with multiple circular apertures. In this method in order to compensate the effects of the apertures on (SE) parameter, we use two metallic walls each containing apertures instead of the one wall. By using two walls for shielding an enclosure, the shielding effectiveness of the enclosure will improve. The numerical simulation uses a symmetric condensed node of TLM – TD (Transmission line Modeling Method – Time Domain) and subsequent Fourier Transform and the result was verified by HFSS and CST software. We obtain the shielding effectiveness response to an electric field impulsive excitation. It is shown that field polarization and enclosure direction has a noticeable effect on SE that should be considered in SE calculations. The effect of different parameters and improving the shielding effectiveness of a metallic enclosure with extra wall is studied. An optimization of the influence of the place of apertures in the walls and the diameter of circles on two walls is presented.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Study the Effect of Different Parameters and Improving the Shielding Effectiveness of a Metallic Enclosure with Extra Wall
AU  - Sedigheh Vaezikakhki
AU  - Seyed Saeid Mosavinejad
AU  - Mehdi Bahadorzadeh
Y1  - 2019/08/14
PY  - 2019
N1  - https://doi.org/10.11648/j.ajece.20190302.11
DO  - 10.11648/j.ajece.20190302.11
T2  - American Journal of Electrical and Computer Engineering
JF  - American Journal of Electrical and Computer Engineering
JO  - American Journal of Electrical and Computer Engineering
SP  - 53
EP  - 57
PB  - Science Publishing Group
SN  - 2640-0502
UR  - https://doi.org/10.11648/j.ajece.20190302.11
AB  - This paper propose a new method for improving shielding effectiveness (SE) of a rectangular enclosure with multiple circular apertures. In this method in order to compensate the effects of the apertures on (SE) parameter, we use two metallic walls each containing apertures instead of the one wall. By using two walls for shielding an enclosure, the shielding effectiveness of the enclosure will improve. The numerical simulation uses a symmetric condensed node of TLM – TD (Transmission line Modeling Method – Time Domain) and subsequent Fourier Transform and the result was verified by HFSS and CST software. We obtain the shielding effectiveness response to an electric field impulsive excitation. It is shown that field polarization and enclosure direction has a noticeable effect on SE that should be considered in SE calculations. The effect of different parameters and improving the shielding effectiveness of a metallic enclosure with extra wall is studied. An optimization of the influence of the place of apertures in the walls and the diameter of circles on two walls is presented.
VL  - 3
IS  - 2
ER  -

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