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Progress In Electromagnetics Research
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AN EFFICIENT NUMERICAL CONTOUR DEFORMATION METHOD FOR CALCULATING ELECTROMAGNETIC SCATTERED FIELDS FROM 3-D CONVEX SCATTERERS

By Y. M. Wu, W. C. Chew, Y.-Q. Jin, T.-J. Cui, and L. J. Jiang

Full Article PDF (307 KB)

Abstract:
We consider the accuracy improvement of the high frequency scattered fields from 3-D convex scatterers. The Fock currents from the convex scatterers are carefully studied. Furthermore, we propose the numerical contour deformation method to calculate the Fock currents with frequency independent workload and error controllable accuracy. Then, by adopting the Fock currents and the incremental length diffraction coefficient (ILDC) technique, the scattered fields are clearly formulated. Compared to physical optics (PO) scattered fields from 3-D convex sphere, numerical results demonstrate significant accuracy enhancement of the scattered field via the Fock current approach.

Citation:
Y. M. Wu, W. C. Chew, Y.-Q. Jin, T.-J. Cui, and L. J. Jiang, "An Efficient Numerical Contour Deformation Method for Calculating Electromagnetic Scattered Fields from 3-D Convex Scatterers," Progress In Electromagnetics Research, Vol. 158, 109-119, 2017.
doi:10.2528/PIER16112801
http://www.jpier.org/PIER/pier.php?paper=16112801

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