High Gain Graphene-Based Magneto-Electric Antenna for 5G Communications

2018 International Japan-Africa Conference on Electronics, Communications and Computations (JAC-ECC) Pub Date : 2018-12-01 DOI:10.1109/JEC-ECC.2018.8679535

S. Zainud-Deen, H. Malhat, A. Ghazi

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引用次数: 1

Abstract

This paper introduces a wideband graphene-based magneto-electric (ME) antenna with reconfigurable radiation characteristics for 5G communications. It consists of graphene patches deposited on silicon oxide substrate arranged horizontally and vertically to act as a ME-antenna. The reconfigurable conductivity of graphene is used to control the operating bandwidth of the antenna. The single element has an impedance matching bandwidth of 78.3 % with circular polarized band of 61.2% for applying chemical potential, µc=2 eV. The effect of changing the graphene reconfigurable conductivity on the radiation characteristics of the ME-antenna is investigated. The operating bandwidth is controlled by proper biasing the graphene sheet. The peak gain and the antenna efficiency are increased with increasing the chemical potential value due to the increase in graphene conductivity. The mutual coupling between ME-antenna elements is investigated for linear and circular arrangements. Octagonal array consists of 8-similar elements are constructed to produce electronic beam switching in different directions. Single beam, dual-beams, and omni-directional beam are achieved by controlling the graphene conductivity of single, two, and all the ME-elements in the array.

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5G通信用高增益石墨烯磁电天线

介绍了一种用于5G通信的具有可重构辐射特性的宽带石墨烯基磁电(ME)天线。它由沉积在氧化硅衬底上的石墨烯片组成，水平和垂直排列，作为me天线。石墨烯的可重构电导率被用来控制天线的工作带宽。当化学势为µc=2 eV时，单元件的阻抗匹配带宽为78.3%，圆极化带为61.2%。研究了改变石墨烯可重构电导率对me天线辐射特性的影响。通过对石墨烯片进行适当的偏置来控制工作带宽。由于石墨烯电导率的增加，随着化学势值的增加，峰值增益和天线效率也随之增加。研究了线性布置和圆形布置下me天线单元间的相互耦合。八角形阵列由8个相似的元件组成，以产生不同方向的电子束开关。单束、双束和全向束是通过控制阵列中单个、两个和所有me元素的石墨烯电导率来实现的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 International Japan-Africa Conference on Electronics, Communications and Computations (JAC-ECC)

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