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A novel fast algorithm of electromagnetic dyadic Green's function in horizontal layered medium

Chen Gui-Bo Bi Juan Wang Jian-Bo Chen Xin-Yi Sun Guan-Cheng Lu Jun

A novel fast algorithm of electromagnetic dyadic Green's function in horizontal layered medium

Chen Gui-Bo, Bi Juan, Wang Jian-Bo, Chen Xin-Yi, Sun Guan-Cheng, Lu Jun
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  • Abstract views:  3318
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  • Received Date:  09 October 2010
  • Accepted Date:  11 November 2010
  • Published Online:  15 September 2011

A novel fast algorithm of electromagnetic dyadic Green's function in horizontal layered medium

  • 1. College of Science, Changchun University of Science and Technology, Changchun 130022, China

Abstract: In this paper, a novel fast algorithm is presented for electromagnetic (EM) dyadic Green’s functions in horizontal layered medium using direct-waves’ extraction combining with self-adaptive digital filter method. First of all, the direct-waves which characterize effects of homogeneous medium in spectral domain Green’s functions(SDGF) are extracted, and their integrals are obtained by analytical calculations. In this method, the singularity of SDGF is reduced and the integral convergence range is shortened remarkably. Then, we transform the remnant integrals of SDGF into three rapid declining integrals, and self-adaptive digital filter method is introduced to obtain solution quickly. Finally, our numerical results validate the efficiency of the algorithm.

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