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Proceedings Paper

Scattering properties of electromagnetic waves from metal object in the lower terahertz region
Author(s): 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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Paper Abstract

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.

Paper Details

Date Published: 12 January 2018
PDF: 9 pages
Proc. SPIE 10623, 2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications, 106230E (12 January 2018); doi: 10.1117/12.2295017
Show Author Affiliations
Gang Chen, China Academy of Space Technology (China)
H. X. Dang, China Academy of Space Technology (China)
T. Y. Hu, China Academy of Space Technology (China)
Xiang Su, China Academy of Space Technology (China)
R. C. Lv, China Academy of Space Technology (China)
Hao Li, China Academy of Space Technology (China)
X. M. Tan, China Academy of Space Technology (China)
T. J. Cui, Southeast Univ. (China)


Published in SPIE Proceedings Vol. 10623:
2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications
Cunlin Zhang; Xi-Cheng Zhang; Zhiming Huang; Liquan Dong, Editor(s)

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