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Scattering properties of electromagnetic waves from metal object in the lower terahertz region

majunge000 添加于 2018/1/16 21:34:13  471次阅读 | 0次推荐 | 0个评论

An efficient hybrid algorithm is proposed to analyze the electromagnetic scattering properties of metal objects in the lower terahertz (THz) frequency. The metal object can be viewed as perfectly electrical conducting object with a slightly rough surface in the lower THz region. Hence the THz scattered field from metal object can be divided into coherent and incoherent parts. The physical optics and truncated-wedge incremental-length diffraction coefficients methods are combined to compute the coherent part; while the small perturbation method is used for the incoherent part. With the MonteCarlo method, the radar cross section of the rough metal surface is computed by the multilevel fast multipole algorithm and the proposed hybrid algorithm, respectively. The numerical results show that the proposed algorithm has good accuracy to simulate the scattering properties rapidly in the lower THz region. © (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

作 者:Gang Chen; H. X. Dang; T. Y. Hu; Xiang Su; R. C. Lv; Hao Li; X. M. Tan; T. J. Cui
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学科领域:数理科学 » 物理学 » 光学
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原文链接:https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10623/106230E/Scattering-properties-of-electromagnetic-waves-from-metal-object-in-the/10.1117/12.2295017.short?SSO=1
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