新型轨道角动量天线的研究
发布时间：2019-05-21 16:56
【摘要】：近年来,无线通讯技术快速发展,无线通信系统所分配的频谱变得异常拥挤,不断增长的无线业务需求和日益严重的频谱资源匮乏的问题,成为了无线通信发展的阻碍。在这一背景下,研究人员提出了利用轨道角动量复用技术提升无线通信容量的想法。轨道角动量复用作为一种新的无线通信领域的复用技术,其理论基础来源于量子力学中的轨道角动量理论,如果该技术能投入实际运用,可以将无线通信的带宽极大地拓宽,有效地提升频谱利用率。因此,轨道角动量天线的研究对无线通信发展有着重要意义。本文针对这一研究热点,对轨道角动量天线进行了探索和研究。文章介绍了涡旋电磁波的研究背景及意义,回顾了近年来国内外轨道角动量天线的研究动态并进行总结。同时,文章阐述了轨道角动量相关的理论基础,为后面天线设计提供理论支持。本文提出了一种新的实现轨道角动量方法,并基于此方法设计了一种轨道角动量喇叭天线。设计原理是基于圆波导中极化简并模式组合可得到相位因子的特点,理论分析表明利用波导中的mnTE或mnTM模式,可得到?m和?(m-1)阶的轨道角动量。本文用HFSS和FEKO两种软件进行仿真验证,天线工作在x波段,用两个端口馈电以实现正交极化简并模式叠加,结果表明在电场r,?分量可得到±2阶轨道角动量,电场y,x分量得到±1阶轨道角动量。且加工测试结果与仿真结果一致。本文将所设计天线作为抛物面馈源进行探讨,抛物面设计符合轨道角动量电磁波特点。增加抛物面反射后可以显著提高天线增益,减小波束空心化范围;经抛物面反射后轨道角动量的阶数与馈源本身的阶数互为相反数,即涡旋的旋向相反。
[Abstract]:In recent years, with the rapid development of wireless communication technology, the spectrum allocated by wireless communication system has become extremely crowded, the growing demand for wireless services and the increasing shortage of spectrum resources have become obstacles to the development of wireless communication. In this context, researchers put forward the idea of using orbital angular momentum reuse technology to improve wireless communication capacity. As a new reuse technology in the field of wireless communication, orbital angular momentum reuse is based on the orbital angular momentum theory in quantum mechanics. if this technology can be put into practical application, the bandwidth of wireless communication can be greatly broadened. Effectively improve spectrum efficiency. Therefore, the research of orbital angular momentum antenna is of great significance to the development of wireless communication. In this paper, the orbital angular momentum antenna is explored and studied. In this paper, the research background and significance of vortex electromagnetic wave are introduced, and the research trends of orbital angular momentum antenna at home and abroad in recent years are reviewed and summarized. At the same time, the theoretical basis of orbital angular momentum correlation is described, which provides theoretical support for the design of the rear antenna. In this paper, a new method for realizing orbital angular momentum is proposed, and a orbital angular momentum horn antenna is designed based on this method. The design principle is based on the characteristic that the phase factor can be obtained by the combination of polarization degeneracy modes in circular waveguides. Theoretical analysis shows that the orbital angular momentum of order m and (m 鈮，
本文编号：2482245
[Abstract]:In recent years, with the rapid development of wireless communication technology, the spectrum allocated by wireless communication system has become extremely crowded, the growing demand for wireless services and the increasing shortage of spectrum resources have become obstacles to the development of wireless communication. In this context, researchers put forward the idea of using orbital angular momentum reuse technology to improve wireless communication capacity. As a new reuse technology in the field of wireless communication, orbital angular momentum reuse is based on the orbital angular momentum theory in quantum mechanics. if this technology can be put into practical application, the bandwidth of wireless communication can be greatly broadened. Effectively improve spectrum efficiency. Therefore, the research of orbital angular momentum antenna is of great significance to the development of wireless communication. In this paper, the orbital angular momentum antenna is explored and studied. In this paper, the research background and significance of vortex electromagnetic wave are introduced, and the research trends of orbital angular momentum antenna at home and abroad in recent years are reviewed and summarized. At the same time, the theoretical basis of orbital angular momentum correlation is described, which provides theoretical support for the design of the rear antenna. In this paper, a new method for realizing orbital angular momentum is proposed, and a orbital angular momentum horn antenna is designed based on this method. The design principle is based on the characteristic that the phase factor can be obtained by the combination of polarization degeneracy modes in circular waveguides. Theoretical analysis shows that the orbital angular momentum of order m and (m 鈮，
本文编号：2482245
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