角动量
涡流
微波食品加热
物理
光学
波长
无线电波
无线电频率
声学
计算机科学
电信
经典力学
量子力学
热力学
作者
Shixing Yu,Long Li,Guangming Shi,Cheng Zhu,Xiaoxiao Zhou,Yan Shi
摘要
In this paper, a reflective metasurface is designed, fabricated, and experimentally demonstrated to generate an orbital angular momentum (OAM) vortex wave in radio frequency domain. Theoretical formula of phase-shift distribution is deduced and used to design the metasurface producing vortex radio waves. The prototype of a practical configuration is designed, fabricated, and measured to validate the theoretical analysis at 5.8 GHz. The simulated and experimental results verify that the vortex waves with different OAM mode numbers can be flexibly generated by using sub-wavelength reflective metasurfaces. The proposed method and metasurface pave a way to generate the OAM vortex waves for radio and microwave wireless communication applications.
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