WCSE

Scattering of Stealth-Material Objects Illuminated by OAM Beams

Abstract— The high-order Bessel vortex beam (BVB) carrying orbital angular momentum (OAM) is used to study the scattering characteristics of the stealth-material (SM) triangular pyramid and the SM cube for evaluating the interaction between the orbital angular momentum (OAM) beams and the SM standard objects. We use the radial point interpolation method (RPIM) algorithm to calculate the electric and magnetic field values which are used in the near-field to far-field transformation (NFFFT), and use the RCS empirical formula to calculate the value of the RCS. The results show that the RCS increases obviously when the BVB beam illuminate the target objects. Then, the scattering field is calculated for analyzing the phase distribution and OAM spectrum in detail. The results show that the scattering field of axisymmetric objects still retains the main characteristics of vortex field due to the conservation of angular momentum. Therefore, compared with plane waves, OAM beams possess more potential for anti-stealth target detection and recognition.

Index Terms— anti-stealth, orbital angular momentum (OAM), radar cross section (RCS), scattering, stealthmaterial (SM).

Zhong Yu
School of Information and Communication Engineering, Xi'an University of Posts & Telecommunications, China
Bingwen He
School of Information and Communication Engineering, Xi'an University of Posts & Telecommunications, China
Pan Wang
School of Information and Communication Engineering, Xi'an University of Posts & Telecommunications, China

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Cite: Zhong Yu, Bingwen He, Pan Wang, " Scattering of Stealth-Material Objects Illuminated by OAM Beams, " WCSE 2022 Spring Event: 2022 9th International Conference on Industrial Engineering and Applications, pp. 1016-1022, Sanya, China, April 15-18, 2022.