【作者】 常状； 吴林晟； 唐旻； 张耀平； 毛军发；

【Author】 Zhuang CHANG;Linsheng WU;Min TANG;Yaoping ZHANG;Junfa MAO;Key Laboratory of Ministry of Education of Design and Electromagnetic Compatibility of High-Speed Electronic Systems,Shanghai Jiao Tong University;

【机构】 上海交通大学电子信息与电气工程学院高速电子系统设计与电磁兼容研究教育部重点实验室；

【摘要】 本文首次提出了一种可激发涡旋无线电波的可重构石墨烯反射阵。通过改变不同尺寸石墨烯贴片的外加电场偏置,可动态调控反射波的相位。在空间上合理排布石墨烯贴片并适当施加偏置,可形成各种涡旋模式对应的相位分布。仿真结果表明,该石墨烯反射阵可在太赫兹频段产生电可调的0阶、±1阶、±2阶涡旋无线电波。更多还原

【Abstract】 A reconfigurable graphene reflectarray is proposed in this paper for the generation of vortex radio waves for the first time.By changing the biasing of graphene patches with different sizes,the phase of reflected wave can be tuned electrically.The phase distribution related to various orbital angular momentum modes can be formed when the graphene patches are properly arranged and biased in different regions.It is indicated by the simulated results that the vortex radio waves have been successfully generated by the proposed graphene reflectarray in THz and the modes 0,± 1,and ± 2 can be controlled dynamically.更多还原