电波科学学报2025，Vol.40Issue(6)：1014-1023,10.DOI:10.12265/j.cjors.2024213
一种平面圆环阵列涡旋波束的低旁瓣设计方法
A low sidelobe design method for planar annular array vortex beams
摘要
Abstract
This paper proposes a method for designing low sidelobe vortex beams based on planar annular arrays.The effects of the inner and outer radii of the planar annular array on the sidelobe level,divergence angle,and beamwidth of the vortex beams is discussed.Simulation and experimental results show that for a single-mode vortex beam antenna,the simulated sidelobe levels of the 1st,2nd,and 3rd-order modes are below-32.3 dB,-32.8 dB,and-30.0 dB,respectively,for a multi-model vortex beam antenna,the simulated and measured sidelobe levels of the 1st,2nd,and 3rd-order modes are lower than-29.8 dB,-30.3 dB,and-25.3 dB,and-25.4 dB,-30 dB and-24.6 dB,respectively.The method,based on an optimized annular array structure and non-uniform Chebyshev excitation,can effectively suppress the sidelobe level of vortex beams and is applicable to the antenna design of multi-modal vortex electromagnetic wave communication systems.关键词
涡旋波/轨道角动量/圆环阵列/低旁瓣/多模态Key words
vortex beam/orbital angular momentum/planar annular array/low side-lobe/multi-model分类
信息技术与安全科学引用本文复制引用
YIN Feiyang,XIANG Dong,RONG Junjie,JIN Ronghong,LIANG Xianling..一种平面圆环阵列涡旋波束的低旁瓣设计方法[J].电波科学学报,2025,40(6):1014-1023,10.基金项目
国家自然科学基金(62271313)National Natural Science Foundation of China(62271313) （62271313）
