使用石墨烯的轨道角动量微带天线设计  

Design of orbital angular momentum microstrip antenna using graphene

作　　者：成国庆 王全全 宛汀[1] 宋祖昆 CHENG Guoqing;WANG Quanquan;WAN Ting;SONG Zukun(School of Communications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing,Jiangsu 210003,China;Nanchang Branch,China Mobile Communications Group Jiangxi Co.,Ltd.,Nanchang,Jiangxi 330038,China)

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]中国移动通信集团江西有限公司南昌分公司,江西南昌330038

出　　处：《江苏大学学报(自然科学版)》2025年第2期189-193,共5页Journal of Jiangsu University:Natural Science Edition

基　　金：国家自然科学基金资助项目(62071245)。

摘　　要：为了生成不同模态数的轨道角动量涡旋波,使用石墨烯材料设计出一款微带天线,并给出了天线的尺寸与材料.该天线质量轻,结构简单,加工容易,只需调整馈电相位差便能够产生模态数l=-2,0,+2的轨道角动量涡旋波.通过参数化扫描,从阻抗匹配、回波损耗、工作带宽、增益等方面探讨了天线性能,并分析了石墨烯材料特性对天线性能的影响.仿真结果表明,当石墨烯的化学势为0.9 eV时,微带天线工作在14.90 GHz下的回波损耗可达-47.00 dB,增益可达9.25 dB,与传统天线相比性能改善较大.此外,调整石墨烯的化学势可以较好改善天线的回波损耗.To generate orbital angular momentum vortex waves with different modes,the microstrip antenna was designed using graphene materials,and the antenna dimensions and materials were provided.The antenna was light in weight,simple in structure and easy to manufacture,which could generate orbital angular momentum vortex waves with mode numbers l of-2,0 and +2 only by adjusting the feed phase difference.Through parameterized scanning,the antenna properties were evaluated in terms of impedance matching,return loss,operating bandwidth and gain,and the influence of graphene on antenna properties was analyzed.The simulation results show that when the chemical potential of graphene is 0.9 eV,the return loss of microstrip antenna at 14.90 GHz can reach-47.00 dB with the gain of 9.25 dB,and the performance is improved significantly compared with the traditional antenna.Adjusting the chemical potential of graphene can also improve the return loss of antenna.

关 键 词：微带天线 石墨烯 轨道角动量 涡旋波 化学势 电导率 频率调谐 

分 类 号：TN827.1[电子电信—信息与通信工程]