Scattering of Non-Diffracting Vortex Electromagnetic Wave by Typical Targets

Abstract

Abstract-In the field of radar target detection, vortex electromagnetic (EM) wave carrying orbital angular momentum (OAM) has drawn great attention in recent years because of its prospect to improve the capacity of information acquisition. As a typical vortex EM wave, the high-order Bessel vortex beam (HOBVB) has the properties of non-diffraction propagation, small central spot diameter, good direction, and long propagation distance. This study investigates the scattering of non-diffracting HOBVB by radar targets. The mathematical description of the electromagnetic field components of the arbitrarily incident HOBVB are given. The surface integral equations for solving the scattering problems involving typical radar targets are established. The effects by OAM intrinsic mode characteristics on the radar scattering cross section are simulated. This investigation is expected to provide useful guidance for revealing EM scattering mechanism in the OAM domain.

Facile synthesis of polypyrrole nanoparticles with tunable conductivity for efficient electromagnetic wave absorption and shielding performance

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Scattering Characteristics of an Electrically-Large Aircraft Object Illuminated by Bessel Vortex Beams

“…microwave band. The high order Bessel vortex wave scattered by several typical targets has been investigated by using the surface integral equation method [19]. The RCS and 3D directivity plots of the far-field scattering for a typical aircraft model were presented.…”

Scattering of Stealth-material Objects Illuminated by OAM Beams

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