Vol. 39

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Design and Optimization of Multilayered Electromagnetic Shield Using a Real-Coded Genetic Algorithm

By Heeralal Gargama, Sanjay Kumar Chaturvedi, and Awalendra K. Thakur
Progress In Electromagnetics Research B, Vol. 39, 241-266, 2012


We report optimized design of multilayered electromagnetic shield using real coded genetic algorithm. It is observed that the shielding effectiveness in multilayer design is higher than single layered counterpart of equal thickness. An effort has been made to develop alternative approach to achieve specific objective of identifying the design characteristics of each layer in the multilayered shielding configuration. The proposed approach incorporates interrelated factors, such as, absorption and reflection in the design optimization as per specific shielding requirements. The design problem has been solved using shielding effectiveness theory based on transmission line (TL) modeling and real-coded genetic algorithm (GA) with simulated binary crossover (SBX) and parameter-based mutation. The advantage of real-coded GA lies in efficient solution for electromagnetic interference (EMI) shielding design due to its strength in solving constraint optimization problems of continuous variables with many parameters without any gradient information. Additionally, the role of material parameters, such as permittivity and permeability on reflection characteristics and shielding effectiveness has also been investigated and optimized using the proposed models and real-coded GA. Theoretical optimization of electromagnetic parameters has been carried out for SE ~40 dB for many industrial/commercial applications and SE ~80 dB for military applications.


Heeralal Gargama, Sanjay Kumar Chaturvedi, and Awalendra K. Thakur, "Design and Optimization of Multilayered Electromagnetic Shield Using a Real-Coded Genetic Algorithm," Progress In Electromagnetics Research B, Vol. 39, 241-266, 2012.


    1. , , "IEEE Standard: Method for Measuring the Effectiveness of Electromagnetic Shielding Enclosures ,", IEEE Standard 299, 1997, (revision of IEEE Standard 299, 1991).

    2. Morgan, D., "A handbook for EMC testing and measurement," The Institution of Engineering and Technology, London, 2007.

    3. Hoang, N. H., J.-L. Wojkiewicz, J.-L. Miane, and R. S. Biscarro, "Lightweight electromagnetic shields using optimised polyaniline composites in the microwave band," Polymers for Advanced Technologies, Vol. 18, 257-262, 2007.

    4. Jourdan, L., O. Schutze, T. Legrand, E.-G. Talbi, and J. L. Wojkiewicz, "An analysis of the effect of multiple layers in the multi-objective design of conducting polymer composites," Materials and Manufacturing, Vol. 24, 350-357, 2009.

    5. Naishadham, K., "Shielding effectiveness of conductive polymers," IEEE Transactions on Electromagnetic Compatability, Vol. 34, No. 1, 47-50, 1992.

    6. Michielssen, E., J.-M. Sajer, S. Ranjithan, and R. Mitra, "Design of lightweight, broad-band absorbers using genetic algorithms," IEEE Transactions on Microwave Theory and Techniques, Vol. 41, 1024-1031, Jan. 1993.

    7. Oktem, M. H. and B. Saka, "Design of multilayered cylindrical shields using a genetic algorithm," IEEE Transactions on Electromagnetic Compatability, Vol. 43, No. 2, 170-176, 2001.

    8. Jiang, L. Y., X. Y. Li, and J. Zhang, "Design of high performance multilayer microwave absorbers using fast pareto genetic algorithm," Sci. China Ser. E.-Tech. Sci., Vol. 52, No. 9, 2749-2757, 2009.

    9. Dib, N., M. Asi, and A. Sabbah, "On the optimal design of multilayer microwave absorbers," Progress In Electromagnetics Research C, Vol. 13, 171-185, 2010.

    10. Micheli, D., et al., "Broadband electromagnetic absorbers using carbon nanostructure-based composites," IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 10, 2633-2646, 2011.

    11. Deb, K. and R. B. Agrawal, "Simulated binary crossover for continuous search space," Complex Systems, Vol. 9, 115-148, 1995.

    12. Deb, K. and M. Goyal, "A combined genetic adaptive search (Gene AS) for engineering design," Computer Science and Informatics, Vol. 26, No. 4, 30-45, 1996.

    13. Deb, K., "An efficient constraint handling method for the genetic algorithm," Computer Methods in Applied Mechanics and Engineering , Vol. 186, 311-338, 2000.

    14. Schulz, R. B., V. C. Plantz, and D. R. Brush, "Shielding theory in practice," IEEE Transactions on Electromagnetic Compatibility, Vol. 30, No. 3, 187-201, 1988.

    15. Han, F. and L. C. Zhang, "Degeneration of shielding effectiveness of planar shields due to oblique incident plane waves," IEEE 1996 International Symposium on Electromagnetic Compatibility, Symposium Record, 82-86, Aug. 19-23, 1996.

    16. Yavuz, O, M. K. Ram, M. Aldissi, P. Poddar, and H. Srikanth, "Polypyrrole composites for shielding applications," Synthetic Materials, Vol. 151, 211-217, 2005.

    17. Hoang, N. N., "Realisation et caracterisation de structure composite polyaniline-polyurethane dans le domaine de micro-ondes. Modelisation et optimization de blindage electromagnetique multicouche en utilisant un algorithme genetique,", Ph.D. thesis-Ecole Doctorale Des Sciences Physiques et de l'Ingenieur, Universite de Bordeaux 1, France, 2005.

    18. Goldberd, D. E., K. Deb, and J. H. Clark, "Genetic algorithms, noise, and the sizing of populations," Complex Systems, Vol. 6, 333-362, 1992.

    19. Johnson, J. M. and Y. Rahmat-Samii, "Genetic algorithms in engineering electromagnetic," IEEE Antennas and Propagation Magazine, Vol. 39, No. 4, 7-21, 1997.

    20. Vukoc, S. and L. Sopta, "Binary-coded and real-coded genetic algorithm in pipeline flow optimization," Mathematical Communications, Vol. 4, 35-42, 1999.

    21. Guru, B. and H. Hizigru, Electromagnetic Field Theory Fundamentals, 2nd Ed., 362-374, Cambridge University Press, 2009.
    doi: --- Either ISSN or Journal title must be supplied.