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LIU Kang, LIU Hongyan, TAN Zhengkuan, et al. Electromagnetic vortex radar technology and applications[J]. Journal of Radars, 2026, 15(5): 1487–1507. doi: 10.12000/JR26154
Citation: LIU Kang, LIU Hongyan, TAN Zhengkuan, et al. Electromagnetic vortex radar technology and applications[J]. Journal of Radars, 2026, 15(5): 1487–1507. doi: 10.12000/JR26154
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Electromagnetic Vortex Radar Technology and Applications

DOI: 10.12000/JR26154 CSTR: 32380.14.JR26154
  • 1.

    College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China

  • 2.

    China Academy Space Technology Xi’an Branch, Xi’an 710100, China

Funds:  The National Natural Science Foundation of China (62401583, 62322122)
More Information
  • Corresponding author: LIU Hongyan, Lhyan1993@126.com
  • Received Date: 2026-09-02
  • Rev Recd Date: 2026-09-17
    • Available Online: 2026-09-20
    Abstract
  • Improvements in the information transmission and acquisition capabilities of Electromagnetic (EM) waves generally provide the physical basis for enhancing radar target detection performance. Beyond conventional time, space, frequency, and polarization modulation schemes, vortex EM waves carrying orbital angular momentum enable radar target detection in a new information domain, i.e., the wavefront. In this paper, the principles of target detection and imaging using EM vortex radar are introduced, and its technical characteristics are analyzed. Subsequently, the beam manipulation and target scattering characteristics of EM vortex radar are overviewed. Furthermore, the historical development and recent advances in EM vortex radar applications are reviewed, including target imaging, rotational Doppler detection, integrated detection and jamming, and radar systems, with a focus on the corresponding signal processing approaches. Finally, the potential of vortex EM wave-based detection and jamming technologies is evaluated, and key application areas and several important scientific and technical challenges are discussed.

     

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