On the Study of the Electromagnetic Scattering by Large Obstacle Based on the Method of Auxiliary Sources

Authors: Sami Hidouri, Taoufik Aguili

Abstract:

We consider fast and accurate solutions of scattering problems by large perfectly conducting objects (PEC) formulated by an optimization of the Method of Auxiliary Sources (MAS). We present various techniques used to reduce the total computational cost of the scattering problem. The first technique is based on replacing the object by an array of finite number of small (PEC) object with the same shape. The second solution reduces the problem on considering only the half of the object.These t

Keywords: Method of Auxiliary Sources, Scattering, large object, RCS, computational resources.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1338516

References:

[1] R. Lee, V. Chupongstimun, ”A Partitioning Technique for the Finite Element Solution of Electromagnetic Scattering from Electrically Large Dielectric Cylinders,” IEEE Transactions on Antannas and Propagation, Vol. 42, No. 5, May 1994.
[2] B. Stupfel, ”A Fast-Domain Decomposition Method for the Solution of Electromagnetic Scattering by Large Objects,” IEEE Transactions on Antannas and Propagation, Vol. 44, No. 10, October 1996.
[3] F. Obelleiro, L. Landesa, J.L. Rodrguez, M.R. Pino, R.V. Sabariego, and Y. Leviatan, ”Localized Iterative Generalized Multipole Technique for Large Two-Dimensional Scattering Problems,” IEEE Transactions on Antannas and Propagation, Vol. 49, No. 6, June 2001.
[4] Y. Liu, E.K. Yung, and K.K. Mei, ”Interpolation, Extrapolation, and Application of the Measured Equation of Invariance to Scattering by Very Large Cylinders,” IEEE Transactions on Antannas and Propagation, Vol. 45, No. 9, September 1997.
[5] Stratigaki, L. G., M. P. Ioannidou, and D. P. Chrissoulidis, ”Scattering from a dielectric cylinder with multiple eccentric cylindrical dielectric inclusions,” IEEE Proc. Microw. Antannas Propag., Vol. 143, No. 6, 505-511, 1996.
[6] K. Yasumoto, Electromagnetic Theory and Applications for Photonic Crystals, Chapter 1, Taylor and Francis Group, 2006.
[7] D. I. Kaklamani and H. T. Anstassiu, ”Aspects of the Method of Auxiliary Sources (MAS) in computational Electromagnetics,” IEEE Transactions on Antannas and Propagation Magazine, Vol. 44, No. 3, June 2002.
[8] R. S. Zaridze, R. Jabava, G. Ahvlediani, and J. Bit Babik, D. Karkashadze, D. P. Economou, and N. K. Uzunoglu, ”The method of auxiliary sources and scattered field singularities (Caustics),” IEEE Transactions on Antannas and Propagation Magazine, Vol. 12, pp. 1491-1507, 1998.
[9] H. T. Anastassiu, D. G. Lymperopoulos, and D. I. Kaklamani, ”Accuracy Analysis and Optimization of the Method of Auxiliary Sources (MAS) for Scattering by a Circular Cylinder,” IEEE Transactions on Antannas and Propagation Magazine, Vol. 52, No. 6, June 2004.
[10] Anastassiu, H. T. and D. I. Kaklamani, ”Electromagnetic scattering analysis of coated conductors with edges using the method of auxiliary sources (MAS) in conjunction with the standard impedance boundary condition (SIBC),” IEEE Transactions on Antennas and Propagation, Vol. 50, No. 1, January 2002.
[11] N. Deore and A. Chatterjee, ”A cell-vertex finite volume time domain method for electromagnetic scattering”, ”Progress In Electromagnetics Research M, Vol.12,pp.1-15, 2010.