| 摘要: |
| 轨道角动量（Orbital Angular Momentum,OAM）因其模数的无限性与正交性在提升通信容量方面有着巨大的潜力，对解决频谱资源不堪重负的现状有很强的现实意义，而OAM波束自身的发散角限制了其远距离通信的能力。OAM波束控制技术作为OAM波束固有的发散角问题的解决方案，极具研究价值和发展前景。介绍了近年来OAM波束控制技术的研究进展，包括抛物面天线法、透镜天线法、谐振腔法、超表面法以及其他波束控制技术。OAM波束控制技术尚不成熟，针对不同类型以及不同应用领域还需进行不同侧重的研究。 |
| 关键词: 无线通信 轨道角动量(OAM)天线 涡旋电磁波波束控制 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（61771490）；陕西省自然科学基金项目（2018JM6055）；武警工程大学基础研究基金项目（WJY201908）；武警工程大学科研团队项目（KYTD201803） |
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| Research progress of OAM antenna beam-steering technology |
| YANG Yufei,XIE Wenxuan,ZHU Yongzhong,LIU Xiaoyu |
| (School of Information Engineering，Engineering University of PAP，Xian 710086，Chin) |
| Abstract: |
| With infinite and orthogonal modularity，orbital angular momentum(OAM) has great potential in enlarging the communication capacity,which has a strong significance in the practice of dealing with the overwhelmed spectrum resources.However,the divergence angle of OAM beam itself limits its application in long-distance communication.The technology of beam-steering of OAM antenna can be a solution to the inherent problem of divergence angle.The research progress of OAM antenna beam-steering technology is introduced,including parabolic antenna method,lens antenna method,resonant cavity method,metasurface method and other methods.Because the technology of beam-steering of OAM antenna is far from maturity,various researches on types and application fields should be done in the future. |
| Key words: wireless communication orbital angular momentum(OAM) antenna beam-steering of vortex electromagnetic wave |
