Analyses of electromagnetic scattering characteristics for 3D time-varying plasma medium | Zendy

Lixia Yang | Zendy; Shen Dan-Hua | Zendy; Shi Wei-Dong | Zendy

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Analyses of electromagnetic scattering characteristics for 3D time-varying plasma medium

Author(s) -

Lixia Yang,

Shen Dan-Hua,

Shi Wei-Dong

Publication year - 2013

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.62.104101

Subject(s) - finite difference time domain method , inverse laplace transform , laplace transform , plasma , radar cross section , physics , time domain , maxwell's equations , mathematical analysis , boundary value problem , scattering , computer science , mathematics , optics , classical mechanics , quantum mechanics , computer vision

To analyze the time-varying plasma, a modified finite-difference time-domain (LTJEC-FDTD) algorithm is derived. By using Laplace transform and inverse Laplace transform, we can deduce the FDTD iteration expression for calculating 3D time-varying problem from Maxwell equation and plasma constitutive equation. The iteration expression is proven to be correct by mode-coupling theory, while the correctness of the relevant boundary is tested by calculating the radar cross-section (RCS) of plasma sphere. So, the method is suitable to the calculation of time-varying plasma. Then, the RCS of complex time-varying plasma object is also analyzed.

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