Hongyan Liu, Kang Liu, Yongqiang Cheng, Hongqiang Wang, Yu Wang
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Scattering Characteristics of Vortex Electromagnetic Waves by a Metal Plate
In this paper, the scattering characteristics of a metal flat plate illuminating by vortex EM waves are investigated. The scattering model is established by physical optics (PO) method and the bistatic radar cross section (RCS) calculations are derived. The scattering field is simulated by numerical simulation. The scattering characteristics including intensity distribution, phase distribution, orbital angular momentum (OAM) spectrum distribution and bistatic RCS calculations are analyzed. The results show that the scattering characteristics are different with conventional plane waves, and the scattering field has a high purity of OAM mode, which can provide a new prospect for radar detection and recognition.
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