Nataša Nešić, Nebojša Dončov, Slavko Rupčić, Vanja Mandrić-Radivojević

DOI Number
First page
Last page


In this paper, the impact of an electromagnetic absorber inside a protective metal enclosure is analyzed. The absorber is put inside the enclosure in order to improve its shielding effectiveness, especially at the first resonant frequency. Different absorber's sheet positions inside the enclosure are analyzed. The absorber sheet dimensions are fitted to correspond the enclosure's walls. The experimental procedure is conducted in a semi-anechoic room. The numerical TLM simulations of the EM filed distribution inside enclosure are conducted in order to consider position of the absorber sheet on different walls.


Absorber, Enclosure, EMI absorber sheet, Measurements, Shielding Effectiveness, TLM method.

Full Text:



N. Nešić, S. Rupčić, V. Mandrić-Radivojević and N. Dončov, "Experimental analysis of a metal enclosure shielding effectiveness improvement with EMI absorber", In Proceedings of the 15th International Online Conference on Applied Electromagnetics - ПЕС 2021, Niš, 2021, pp. 98–101.

C. Christopoulos, Principles and Techniques of Electromagnetic Compatibility, 2nd ed. CRS Press, 2007.

H. A. Mendez, "Shielding theory of enclosures with apertures", IEEE Trans. Electromagn. Compat., vol. 20, no. 2, pp. 296–305, May 1978.

P. M. Robinson, M. T. Benson, C. Christopoulos, F. J. Dawson, D. M. Ganley, C. A. Marvin, J. S. Porter and P. W. Thomas, "Analytical formulation for the shielding effectiveness of enclosures with apertures", IEEE Trans. Electromagn. Compat., vol. 40, no. 3, pp. 240–248, August 1998.

C. Christopoulos, The Transmission-Line Modelling (TLM) Method. Piscataway, New Jersey: Wiley-IEEE Press in association with Oxford University Press, May 1995.

N. J. Nešić, and N. Dončov, "Shielding Effectiveness Estimation by using Monopole-receiving Antenna and Comparison with Dipole Antenna", Frequenz, vol. 70, no. 5-6, pp. 191–201, April 2016.

N. J. Nešić, Numerical and experimental analysis of aperture arrays impact on the shielding effectiveness of metal enclosures in microwave frequency range, Doctoral thesis, in Serbian, Singidunum University, Belgrade, 2017.

N. J. Nešić, S. Rupčić, V. Mandrić Radivojević and N. Dončov, "Experimental Analysis of Electromagnetic Interferences Absorber Influence on Metal Enclosure Immunity", In Proceedings of the 8th International Conference on Electrical, Electronic and Computing Engineering (IcETRAN). Bosnia and Herzegovina, 2021, pp. 383–386.

X. Luo and D. D. L. Chung, "Electromagnetic interference shielding using continuous carbon-fiber carbon-matrix and polymer-matrix composites", Elsevier Science, Compos. B Eng., vol. 30, no. 3, pp. 227–231, April 1999.

R. Kumar, S. R. Dhakate, P. Saini and R. B. Mathur, "Improved electromagnetic interference shielding effectiveness of light weight carbon foam by ferrocene accumulation", The Roy. Soc. of Chem. 2013: RSC Advances, vol. 3, pp. 4145–4151, January 2013.

T. K. Gupta, B. P. Singh, R. B. Mathur and S. R. Dhakate, "Multi-walled carbon nanotube–graphene–polyaniline multiphase nanocomposite with superior electromagnetic shielding effectiveness", The Royal Society of Chemistry 2014: Nanoscale, vol. 6, p. 842–851, 2014.

F. Costa, S. Genovesi, A. Monorchio and G. Manara, "A Circuit-based Model for the Interpretation of Perfect Metamaterial Absorbers", IEEE Trans. Antennas and Propag., vol. 63, no. 3, pp. 1201–1209, March 2013.

B. A. Munk, Frequency Selective Surfaces Theory and Design, New York: John Wiley and Sons, Inc., 2000.

F. Qin and C. Brosseau, "A review and analysis of microwave absorption in polymer composites filled with carbonaceous particles", J. Appl. Phys., vol. 111, p. 061301, March 2012.

A. Ameli, P. U. Jung and C. B. Park, "Electrical properties and electromagnetic interference shielding effectiveness of polypropylene/carbon fiber composite foams", Elsevier: Carbon, vol. 60, pp. 379-391, August 2013.

J. Paul, S. Greedy, H. Wakatsuchi and C. Christopoulos, "Measurements and Simulations of Enclosure Damping Using Loaded Antenna Elements", In Proceedings of the IEEE 10th International Symposium on Electromagnetic Compatibility, York, 2011, pp. 676–679.

N. Nešić, B. Milovanović, N. Dončov, V. Mandrić-Radivojević and S. Rupčić, "Improving Shielding Effec-tiveness of a Rectangular Metallic Enclosure with Aperture by Using Printed Dog-bone Dipole Structure", In Proceedings of 52nd International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST), Niš, 2017, pp. 97–100.

N. J. Nešić, B. G. Milovanović, N. S. Dončov, S. M. Rupčić and V. Mandrić-Radivojević, "Improving shielding effectiveness of a metallic enclosure at resonant frequencies", In Proceedings of the IEEE 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS), Niš, 2017, pp. 42–45.

D. M. Pozar, Microwave Engineering, 4th ed. Wiley, 2012, Chapters 2-3, pp. 48–162.

V. Trenkić, A. J. Wlodarczyk and R. Scaramuzza, "A Modelling of Coupling between Transient Electromagnetic Field and Complex Wire Structures", Int. Journal of Num. Modelling, vol. 12, no. 4, pp. 257–273, July/August 1999.

N. J. Nešić, Slavko S. Rupčić, Nebojša S. Dončov, Vanja Mandrić-Radivojević, "Experimental Shielding Effectiveness Analysis of Metal Plate Influence inside an Enclosure with Aperture", In Proceedings of the IEEE 14th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS), Niš, 2019, pp. 190–193.



  • There are currently no refbacks.

ISSN: 0353-3670 (Print)

ISSN: 2217-5997 (Online)

COBISS.SR-ID 12826626