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      Scattering Properties of Electromagnetic Waves from Randomly Oriented Rough Metal Plate in the Lower Terahertz Region

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          Abstract

          An efficient hybrid algorithm is proposed to analyze the electromagnetic scattering properties of an infinitely thin metal plate in the lower terahertz (THz) frequency region. In this region, the metal plate can be viewed as a perfect electrically conductive object with a marginally rough surface. Hence, the THz scattered field from the metal plate can be divided into coherent and incoherent parts. The physical optics and truncated-wedge incremental-length diffraction coefficients methods are used to compute the coherent part, whereas the small perturbation method is used to compute the incoherent part. Then, the radar cross section of the rough metal plate surface is computed by the multilevel fast multipole and proposed hybrid algorithms. The numerical results show that the proposed algorithm has a good accuracy when rapidly simulating the scattering properties in the lower THz region.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 February 2018
          : 7
          : 1
          : 75-82
          Affiliations
          [1 ] ①(China Academy of Space Technology (Xi’an), Xi’an 710000, China)
          [2 ] ②(State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China)
          Article
          2ea29baf7ca5465284fbb8f859519b88
          10.12000/JR17093

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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