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2010-11-06
Hybrid Finite-Difference/Mode-Matching Method for Analysis of Scattering from Arbitrary Configuration of Rotationally-Symmetrical Posts
By
Progress In Electromagnetics Research, Vol. 110, 23-42, 2010
Abstract
In this paper, the hybrid approach to the analysis of electromagnetic wave scattering from arbitrary configuration of body-of-revolution (BOR) posts is presented. The proposed approach is based on the representation of each scatterer or set of scatterers by an effective sphere with the known boundary conditions defined by transmission matrix. In the analysis of each single axially-symmetrical post with irregular shape we utilize the finite-difference frequency-domain/mode-matching technique (FDFD/MM). Then the scattering parameters of investigated set of posts are obtained utilizing the analytical iterative scattering procedure (ISP). This work is an extension of our previously published results where the proposed technique was defined in cylindrical coordinates and was limited to configurations of infinitely long parallel cylinders with arbitrary cross-section. In this paper we extend this method by formulating it in spherical coordinates. This allows us to significantly increase the versatility of the developed approach and in result to include in the analysis the sets of arbitrary located and oriented rotationally-symmetrical posts. The accuracy and efficiency of the proposed technique are discussed. The presented numerical results are verified with the ones obtained from commercial software.
Citation
Adam Kusiek Jerzy Mazur , "Hybrid Finite-Difference/Mode-Matching Method for Analysis of Scattering from Arbitrary Configuration of Rotationally-Symmetrical Posts," Progress In Electromagnetics Research, Vol. 110, 23-42, 2010.
doi:10.2528/PIER10092401
http://www.jpier.org/PIER/pier.php?paper=10092401
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