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为了进一步拓展轨道角动量(Orbital Angular Momentum, OAM)的优势，提出了一种工作在毫米波(Millimeter Wave, MMW)频段的超宽带(Ultra-wide Band, UWB)多模态OAM介质谐振器天线，其相对带宽高达74.3%。分析了影响天线匹配效果的重要因素。仿真结果表明，该天线结构紧凑、增益良好、螺旋相位分布标准，在35 GHz附近能够稳定产生10种模态的OAM波束。基于Matlab对天线的OAM-MIMO信道进行了系统搭建，结果表明，对该天线进行模态复用比传统的MIMO天线在信道容量方面有更突出的性能，为OAM在MMW频段的模态复用具有一定的现实意义。
Abstract：In order to further extend the advantages of Orbital Angular Momentum(OAM), an Ultra-wide Band(UWB) multi-modal OAM dielectric resonator antenna working in Millimeter Wave(MMW) band is proposed, which has a relative bandwidth of 74.3%. Important factors affecting antenna's matching effect are analyzed, and simulation results show that the antenna has compact structure, good gains, standard spiral phase distribution, and can generate 10 modes of OAM beam stably near 35 GHz. And the system is built based on Matlab for the OAM-MIMO channel of this antenna, and results show that the modal multiplexing of this antenna has more outstanding performance than traditional MIMO antenna in terms of channel capacity, which has some practical significance for modal multiplexing of OAM in millimeter wave band.
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基本信息:
DOI：
中图分类号:TN820
引用信息:
[1]王艳妮,孙学宏,刘丽萍等.一种毫米波UWB多模态OAM介质谐振器阵列天线[J].无线电工程,2023,53(02):439-448.
基金信息:
国家自然科学基金(62061039)~~