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2012-01-09

Improved Shift-Operator FDTD Method for Anisotropic Magnetized COLD Plasmas with Arbitrary Magnetic Field Declination

By Xiong Yin, Hou Zhang, Hai-Yang Xu, and Xian-Feng Zeng
Progress In Electromagnetics Research B, Vol. 38, 39-56, 2012
doi:10.2528/PIERB11120510

Abstract

In this paper, a recently improved SO-FDTD (shift-operator finite difference time-domain) method is proposed and applied to the numerical analysis of the anisotropic magnetized plasma with arbitrary magnetic declination. By using the constitutive relation between polarized current density vector J and electric vector E and bringing the shift operators, the difference iteration equations of field components for Maxwell equations are derived in detail. Furthermore, the memory requirement is decreased significantly through incorporating a memory-minimized algorithm into the FDTD iterative cycles. The reflection and transmission coefficients of electromagnetic wave through a magnetized plasma layer are calculated by using this method. It is shown that the new method not only improves accuracy but also produces speed and memory advantages over the SO-FDTD method in kDB coordinates system proposed in the recent reference. In addition, the recursion formulae of the improved SO-FDTD method are deduced and programmed easily and they involve no complex variables, so the computations for the magnetized plasma become very simple.

Citation


Xiong Yin, Hou Zhang, Hai-Yang Xu, and Xian-Feng Zeng, "Improved Shift-Operator FDTD Method for Anisotropic Magnetized COLD Plasmas with Arbitrary Magnetic Field Declination," Progress In Electromagnetics Research B, Vol. 38, 39-56, 2012.
doi:10.2528/PIERB11120510
http://www.jpier.org/PIERB/pier.php?paper=11120510

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