摘要
多波束天线技术可用于提升频谱资源利用率和信道容量而备受关注,而利用变换光学的方法设计各类天线也成为近年来的研究热点。提出了利用面积映射方法来设计多波束透镜天线,探讨了透镜天线的实现方法,并仿真验证了天线性能。研究结果表明,基于面积映射方法所设计的多波束透镜天线可呈现出无磁性且分块均匀的材料参数分布,进而可用介质基板钻孔或等效媒质方法来合成器件,用以重塑偶极子天线的辐射方向,提升辐射增益,实现多方向定向辐射。
Multi-beam antenna technology can be used to improve the utilization of spectrum resources and channel capacity,which has attracted much attentions.Transformation optics has been widely used to design various kinds of antennas and has become a research hotspot in recent years.In this paper,an area mapping method was initiatively proposed to design a multi-beam lens antenna.The implementation method was discussed.The performance of the antenna was verified by simulation.Research results show that the designed multi-beam lens antenna based on the area mapping method can exhibit a nonmagnetic and piecewise homogeneity material parameter distributions,and can be synthesized by drilling hole in the dielectric substrate or using equivalent medium.The proposed multi-beam lens antenna can be used to reshape the radiation direction of the dipole antenna,improve the radiation gain,and achieve multi-directional radiation.
作者
杨成福
徐兴贵
陈俊歌
陈娟
Yang Chengfu;Xu Xinggui;Chen Junge;Chen Juan(School of Information Science and Technology,Yunnan Normal University,Kunming,Yunnan 650500,China;School of Information Science and Technology,Yunnan University of Finance and Economics,Kunming,Yunnan 650221,China;Department of Geography,Yunnan Normal University,Kunming,Yunnan 650500,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2022年第3期271-278,共8页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61805251,61875203)。
关键词
光学器件
梯度指数透镜
超材料
等效媒质理论
optical devices
gradient-index lenses
metamaterial
effective medium theory
