角动量
微波食品加热
物理
电磁辐射
光学
涡流
无线电频率
轨道角动量复用
无线电波
声学
总角动量
计算物理学
光的轨道角动量
电信
经典力学
计算机科学
热力学
量子力学
作者
Shixing Yu,Long Li,Guangming Shi,Cheng Zhu,Yan Shi
摘要
In this paper, an electromagnetic metasurface is designed, fabricated, and experimentally demonstrated to generate multiple orbital angular momentum (OAM) vortex beams in radio frequency domain. Theoretical formula of compensated phase-shift distribution is deduced and used to design the metasurface to produce multiple vortex radio waves in different directions with different OAM modes. The prototype of a practical configuration of square-patch metasurface is designed, fabricated, and measured to validate the theoretical analysis at 5.8 GHz. The simulated and experimental results verify that multiple OAM vortex waves can be simultaneously generated by using a single electromagnetic metasurface. The proposed method paves an effective way to generate multiple OAM vortex waves in radio and microwave wireless communication applications.
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