多轨道角动量模式谐振环形行波天线设计  

Resonant ring shaped traveling wave antenna design for multi-mode OAM

作　　者：张振宇 杜永兴[1] 李宝山[1] 徐利权 温海英 ZHANG Zhenyu;DU Yongxing;LI Baoshan;XU Liquan;WEN Haiying(School of Information Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;China Mobile Group Neimenggu Co Ltd,Huhhot 010000,China)

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010 [2]中国移动通信集团内蒙古有限公司,内蒙古呼和浩特010000

出　　处：《传感器与微系统》2024年第2期101-104,109,共5页Transducer and Microsystem Technologies

基　　金：内蒙古自然科学基金资助项目(2021MS06021);国家自然科学基金资助项目(61961033);内蒙古自治区研究生教育教学改革研究与实践项目(YJG20191012710);内蒙古自治区科技重大专项项目(2019ZD025)。

摘　　要：为解决目前轨道角动量(OAM)天线难以在同一频率下多模工作的问题,推动OAM在无线通信领域的实际应用,设计、加工并测量了一种基于单层板的谐振环形行波天线,引入4个馈电探针将不同相位差的信号馈入行波天线。经仿真分析和实际测量,该天线可以在3 GHz上谐振并分别产生了携带有OAM模式l=0,l=±1,l=-2的涡旋电磁波束。该天线结构简单并且可以在同一频率下产生多种模式OAM,能够有效增加无线通信的信道容量,具有一定的理论意义和实用价值。Aiming at the problem that current orbital angular momentum(OAM)antennas is difficult to work in multi-mode at the same frequency and promote the practical application of OAM in wireless communication,a resonant-ring-shaped traveling wave antenna based on a single-layer substrate is designed,fabricated and measured,and four feed probes are introduced to feed signals with different phase differences into the traveling wave antenna.After simulation analysis and actual measurement,the proposed antenna successfully resonates and vortex electromagnetic beams are generated carrying OAM modes with l=0,l=±1 and l=-2 at 3 GHz,respectively.The antenna has a simple structure and can generate multiple modes of OAM at the same frequency,which can effectively increase the channel capacity of wireless communication and has certain theoretical significance and practical value.

关 键 词：轨道角动量 多模态 涡旋电磁波 谐振环形行波天线 

分 类 号：TN92[电子电信—通信与信息系统]