摘要
第五代移动通信(5G)可以实现低时延、高速率、高数据容量的信息传输,相比于第四代移动通信,其工作频段需要提高.毫米波具有小型化、高方向性、高分辨率、频谱资源丰富的优点.另外,宽带宽、低副瓣一直是天线阵列设计追求的目标.本文基于高导电率的柔性石墨烯组装薄膜设计了一种宽带低副瓣的毫米波天线阵列.石墨烯薄膜的电导率高达1.12×10^(6)S/m,密度仅为1.45 g/cm^(3),同时具有高散热的特点.石墨烯天线阵列具有128个辐射单元,采用切比雪夫电流分布,以降低副瓣电平.测试结果表明,石墨烯天线阵列的增益为25.68 d Bi,带宽为3.82 GHz,E面和H面辐射方向图的副瓣电平均小于-20 d B,远远优于铜结构的金属天线阵列.本文对5G通信的发展具有重要意义.
The upcoming fifth-generation(5G)mobile communication with low-latency,high-speed and high-data-capacity[1]can realize innovative services such as remote intelligent medical care,smart cities,Internet of Vehicles,and ultra-high-definition video[2,3].Compared with current mobile communications,5G services require a 5G network with 1000 times the capacity and 10–100 times the data transmission rate[4].5G communication can also realize large-scale connections between people and machines[5].It will be the era of Internet of Everything.The realization of the interconnection of all things is essentially the communication between the transmitting antenna and the receiving antenna.
作者
宋荣国
王哲
祖浩然
陈强
毛博阳
吴志鹏
何大平
Rongguo Song;Zhe Wang;Haoran Zu;Qiang Chen;Boyang Mao;Zhi Peng Wu;Daping He(School of Information Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Engineering Research Center of RF-Microwave Technology and Application,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China;the National Key Laboratory of Antennas and Microwave Technology,Xidian University,Xi’an 710071,China;Chongqing 2D Materials Institute,Chongqing 400714,China)
基金
supported by the National Natural Science Foundation of China(51701146 and 51672204)
the Foundation of National Key Laboratory on Electromagnetic Environment Effects(614220504030617)
the Fundamental Research Funds for the Central Universities(WUT:2020-YB-032,205209016 and 2019IB017)。
