Vortex Electromagnetic Wave Propagation in Magnetized Plasma

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2024-10-09 DOI:10.1109/TAP.2024.3473027

Yiyun Wu;Moran Liu;Chen Zhou

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引用次数: 0

Abstract

Based on the finite-difference time-domain (FDTD) model in the cylindrical coordinate, this article has studied the propagation characteristics of vortex electromagnetic waves (VEMW) in magnetized plasma. To more clearly characterize VEMW, this article has also studied the propagation of VEMW in a vacuum and the results show that VEMW in the vacuum can maintain vortex state and propagate in the direction of antenna radiation. In the magnetized plasma, VEMW is reflected at the cut-off height of each mode, and standing waves occur when the propagation is stable. The vortex state is distorted mainly near the center point, which is particularly serious in the extraordinary wave propagation region. In addition, the orbital angular momentum (OAM) density in magnetized plasma is no longer conserved as in vacuum, and there is a value of OAM density near the center point, which may be related to the collective motion of electrons. Due to the nonlinear interaction between VEMW and plasma, the plasma also presents a vortex state. This propagation model of VEMW can provide some theoretical support for the application of VEMW in ionospheric heating and shortwave communication.

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来源期刊

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques