Open AccessGeneration of unconventional OAM waves by a circular array
Author(s) -
Liu Kang,
Cheng Yongqiang,
Wang Hongqiang,
Qin Yuliang,
Wang Zhan
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0654
Subject(s) - wavefront , optics , physics , angular momentum , transverse plane , plane wave , radar , multiplexing , plane (geometry) , beam (structure) , computer science , acoustics , telecommunications , engineering , geometry , classical mechanics , mathematics , structural engineering
In recent years, orbital angular momentum (OAM) waves have been applied to improve the performance of radar target detection and imaging. However, the phase singularity of conventional OAM beams and the doughnut‐shaped intensity distribution will degrade the performance of target detection. To solve the divergence problem in OAM multiplexing systems, the generation method of OAM beams propagating along a transverse plane is proposed using a uniform circular array, which is validated by full‐wave simulation. Compared with conventional OAM beams, simulation results indicate that the generated beams with different OAM modes all propagate along the transverse plane while maintaining the regular wavefront shapes. This work can provide the development of new radar paradigm with technical support.