Vol. 47
Latest Volume
All Volumes
PIERM 115 [2023] PIERM 114 [2022] PIERM 113 [2022] PIERM 112 [2022] PIERM 111 [2022] PIERM 110 [2022] PIERM 109 [2022] PIERM 108 [2022] PIERM 107 [2022] PIERM 106 [2021] PIERM 105 [2021] PIERM 104 [2021] PIERM 103 [2021] PIERM 102 [2021] PIERM 101 [2021] PIERM 100 [2021] PIERM 99 [2021] PIERM 98 [2020] PIERM 97 [2020] PIERM 96 [2020] PIERM 95 [2020] PIERM 94 [2020] PIERM 93 [2020] PIERM 92 [2020] PIERM 91 [2020] PIERM 90 [2020] PIERM 89 [2020] PIERM 88 [2020] PIERM 87 [2019] PIERM 86 [2019] PIERM 85 [2019] PIERM 84 [2019] PIERM 83 [2019] PIERM 82 [2019] PIERM 81 [2019] PIERM 80 [2019] PIERM 79 [2019] PIERM 78 [2019] PIERM 77 [2019] PIERM 76 [2018] PIERM 75 [2018] PIERM 74 [2018] PIERM 73 [2018] PIERM 72 [2018] PIERM 71 [2018] PIERM 70 [2018] PIERM 69 [2018] PIERM 68 [2018] PIERM 67 [2018] PIERM 66 [2018] PIERM 65 [2018] PIERM 64 [2018] PIERM 63 [2018] PIERM 62 [2017] PIERM 61 [2017] PIERM 60 [2017] PIERM 59 [2017] PIERM 58 [2017] PIERM 57 [2017] PIERM 56 [2017] PIERM 55 [2017] PIERM 54 [2017] PIERM 53 [2017] PIERM 52 [2016] PIERM 51 [2016] PIERM 50 [2016] PIERM 49 [2016] PIERM 48 [2016] PIERM 47 [2016] PIERM 46 [2016] PIERM 45 [2016] PIERM 44 [2015] PIERM 43 [2015] PIERM 42 [2015] PIERM 41 [2015] PIERM 40 [2014] PIERM 39 [2014] PIERM 38 [2014] PIERM 37 [2014] PIERM 36 [2014] PIERM 35 [2014] PIERM 34 [2014] PIERM 33 [2013] PIERM 32 [2013] PIERM 31 [2013] PIERM 30 [2013] PIERM 29 [2013] PIERM 28 [2013] PIERM 27 [2012] PIERM 26 [2012] PIERM 25 [2012] PIERM 24 [2012] PIERM 23 [2012] PIERM 22 [2012] PIERM 21 [2011] PIERM 20 [2011] PIERM 19 [2011] PIERM 18 [2011] PIERM 17 [2011] PIERM 16 [2011] PIERM 14 [2010] PIERM 13 [2010] PIERM 12 [2010] PIERM 11 [2010] PIERM 10 [2009] PIERM 9 [2009] PIERM 8 [2009] PIERM 7 [2009] PIERM 6 [2009] PIERM 5 [2008] PIERM 4 [2008] PIERM 3 [2008] PIERM 2 [2008] PIERM 1 [2008]
2016-03-27
Study of the Shielding Effectiveness of Doublerectangular Enclosureswith Apertures Excited by an Internal Source
By
Progress In Electromagnetics Research M, Vol. 47, 67-76, 2016
Abstract
An analytical formulation has been developed to evaluate the shielding effectiveness (SE) of two coplanar rectangular metallic enclosures with acircular aperture excitedby an internal electric dipole source. The formulation consists of three parts: First, the near-field electromagnetic interference (EMI) of the electromagnetic leakage from the aperture is represented by the electric dipole in one enclosure. Then, the aperture equivalent magnetic and electric dipole moments are calculated according to the Bethe's small aperture coupling theory. Finally, the electric field of the other enclosure is derived by using the equivalent magnetic dipole field, equivalent electric dipole field and the corresponding enclosure's Green's functions in the two fields. In this formulation, the electric field of the enclosure can be expressed as a function of the observation point, the aperture's center point, source point, shape of the aperture and the enclosure's conductivity. The formulation then is employed to analyze the effect of the above factors on the SE. The analytical results have been successfully compared with the full-wave simulation software Computer Simulation Technology (CST) from 0.3~2.4 GHz.
Citation
Jian-Hong Hao Lu-Hang Jiang Yan-Fei Gong Jie-Qing Fan , "Study of the Shielding Effectiveness of Doublerectangular Enclosureswith Apertures Excited by an Internal Source," Progress In Electromagnetics Research M, Vol. 47, 67-76, 2016.
doi:10.2528/PIERM16012505
http://www.jpier.org/PIERM/pier.php?paper=16012505
References

1. Shim, J., D. G. Kam, J. H. Kwon, and J. Kim, "Circuital modeling and measurement of shielding effectiveness against oblique incident plane wave on apertures in multiple sides of rectangular enclosure," IEEE Trans. Electromagn. Compat., Vol. 52, No. 3, 566-577, 2010.
doi:10.1109/TEMC.2009.2039483

2. Hao, J.-H., P.-H. Qi, J.-Q. Fan, and Y.-Q. Guo, "Analysis of shielding effectiveness of enclosures with apertures and inner windows with TLM," Progress In Electromagnetic Research M, Vol. 32, 73-82, 2013.
doi:10.2528/PIERM13060312

3. Jiao, C.-Q. and H.-Z. Zhu, "Resonance suppression and electromagnetic shielding effectiveness improvement of an apertured rectangular cavity by using wall losses," Chin. Phys. B, Vol. 22, No. 8, 1-6, 2013.
doi:10.1088/1674-1056/22/8/084101

4. Song, H., D.-F. Zhou, D.-T. Hou, T. Hu, and J.-Y. Lin, "Hybrid algorithm for slot coupling of double layer shielding cavity," High Power Laser and Particle Beams, Vol. 20, No. 11, 1892-1898, 2008.

5. Hao, C. and D.-H. Li, "Shielding effectiveness of double-deck cavity with apertures," Chinese Journal of Radio Science, Vol. 29, No. 1, 114-121, 2014.

6. Luo, J.-W., P.-A. Du, D. Ren, and P. Xiao, "BLT equation-based approach for calculating shielding effectiveness of double layer rectangular enclosures with apertures," High Power Laser and Particle Beams, Vol. 27, No. 11, 1-6, 2015.

7. Liu, Q.-F., W.-Y. Yin, M.-F. Xue, J.-F. Mao, and Q.-H. Liu, "Shielding characterization of metallic enclosures with multiple slots and a thin-wire antenna loaded: multiple oblique EMP incidences with arbitrary polarizations," IEEE Trans. Electromagn. Compat., Vol. 51, No. 2, 284-292, 2009.
doi:10.1109/TEMC.2008.2011891

8. Liu, Q.-F., W.-Y. Yin, J.-F. Mao, and Z.-Z. Chen, "Accurate characterization of shielding effectiveness of metallic enclosures with thin wires and thin slots," IEEE Trans. Electromagn. Compat., Vol. 51, No. 2, 293-300, 2009.
doi:10.1109/TEMC.2008.927942

9. Shi, Z. and P.-A. Du, "Numerical simulation of near field shielding properties for aperture arrays based on FEM," Chin. J. Electron., Vol. 37, No. 3, 634-639, 2009.

10. Khorrami, M. A., P. Dehkhoda, R. M. Mazandaran, and S. H. H. Sadeghi, "Fast shielding effectiveness calculation of metallic enclosures with apertures using a multiresolution method of moments technique," IEEE Trans. Electromagn. Compat., Vol. 52, No. 1, 230-235, 2010.
doi:10.1109/TEMC.2009.2034644

11. 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 Trans. Electromagn. Compat., Vol. 54, No. 4, 792-805, 2012.
doi:10.1109/TEMC.2012.2188855

12. Nie, B.-L., P.-A. Du, Y.-T. Yu, and Z. Shi, "Study of the shielding properties of enclosures with apertures at higher frequencies using the transmission-line modeling method," IEEE Trans. Electromagn. Compat., Vol. 53, No. 1, 73-81, 2011.
doi:10.1109/TEMC.2010.2047398

13. Bethe, H. A., "Theory of diffraction by small apertures," Physical Review Second Series, Vol. 66, 163-182, 1944.

14. Rao, Y.-P., H. Song, and D.-F. Zhou, "Fast estimation of shielding efficiency of cavity with thin slots," High Power Laser and Particle Beams, Vol. 20, No. 8, 1327-1332, 2008.

15. Li, Y. Y. and C. Q. Jiao, "Analytical formulation for electromagnetic leakage from an apertured rectangular cavity," PIERS Proceedings, 257-261, Guangzhou, China, Aug. 25-28, 2014.

16. Liu, E.-B., P.-A. Du, and B.-L. Nie, "An extended analytical formulation for fast prediction of shielding effectiveness of an enclosure at different observation points with an off-axis aperture," IEEE Trans. Electromagn. Compat., Vol. 56, No. 3, 589-598, 2014.
doi:10.1109/TEMC.2013.2289742

17. Luo, J.-W., P.-A. Du, D. Ren, and B.-L. Nie, "A BLT equation-based approach for calculating the shielding effectiveness of enclosures with apertures," Acta Phys. Sin., Vol. 64, No. 1, 1-8, 2015.

18. Boutar, A., A. Reineix, C. Guiffaut, and G. Andrieu, "An efficient analytical method for electromagnetic field to transmission line coupling into a rectangular enclosure excited by an internal source," IEEE Trans. Electromagn. Compat., Vol. 57, No. 3, 565-573, 2015.
doi:10.1109/TEMC.2014.2386913

19. Frederick, M. T., et al., EMC Analysis Methods and Computational Models, 1st Ed., Wiley Interscience, New York, 1996.