A Compact Millimeter Wave Antenna Array with Defected Ground Structure for 5G Applications  

适用于5G通信的具有缺陷接地结构的紧凑型毫米波天线阵列

作　　者：SHAKEEL Awais HAN Fang ZAHOOR Sahar KHALEEQ Danish SHAKEEL Awais;韩芳;ZAHOOR Sahar;KHALEEQ Danish(东华大学信息科学与技术学院,上海201620;巴哈德因·扎卡里亚大学,木尔坦60800,巴基斯坦;阿拉玛·伊克巴尔开放大学,伊斯兰堡44310,巴基斯坦)

机构地区：[1]College of Information Science and Technology,Donghua University,Shanghai 201620,China [2]Bahauddin Zakariya University,Multan 60800,Pakistan [3]Allama Iqbal Open University,Islamabad 44310,Pakistan

出　　处：《Journal of Donghua University(English Edition)》2024年第5期557-568,共12页东华大学学报（英文版）

基　　金：National Natural Science Foundation of China(No.12272092)。

摘　　要：The transition towards the fifth generation(5G)of communication systems has been fueled by the need for compact,high-speed and wide-bandwidth systems.These advancements necessitate the development of novel and highly efficient antenna designs characterized by the compact size.In this paper,a novel antenna design with a hexagonal-shaped resonating element and two U-shaped open-ended stubs is presented.Millimeter-wave(mmWave)frequency range suffers from attenuation due to atmosphere and path loss because of higher frequencies.To address these issues,the deployment of a high-gain antenna is imperative.This design is created through an evolutionary process to work best in the mmWave frequency range with a high gain.A thin Rogers RT5880 substrate with a thickness of 0.254 mm,a dielectric constant of 2.3 and a loss tangent of 0.0009 supports the copper-based radiating element.A partial ground plane with a square slot and trimmed corners at the bottom enhances the antenna’s bandwidth.The single-element antenna exhibits a wide bandwidth of nearly 6 GHz and a gain of 4.58 dBi.By employing the proposed antenna array,the antenna gain is significantly enhanced to 14.90 dBi while maintaining an ultra-compact size of 24 mm×46 mm at the resonant frequency of 31 GHz.The antenna demonstrates a wider impedance bandwidth of 15.73%(28-34 GHz)and an efficiency of 94%.The proposed design works well for 5G communication and satellite communication,because it has a simple planar structure and focused dual-beam radiation patterns from a simple feeding network.对紧凑、高速和宽带宽系统的需求,推动了通信系统向第五代(the fifth generation,5G)过渡。这些进步促使具有紧凑尺寸的新型高效天线设计的开发。该文提出了一种新型天线的设计,该天线具有一个六边形谐振元件和两个U形开口短截线。毫米波频率范围会因大气层而衰减,而由于频率较高,路径损耗会受到影响。为了解决这些问题,部署高增益天线势在必行。该设计是通过从单个天线到天线阵列的逐步进化过程创建的,可在毫米波范围内以高增益工作。厚度为0.254 mm、介电常数为2.3、损耗角正切为0.0009的薄Rogers RT5880基板支撑铜基辐射元件。带有方形插槽和底部修剪角的部分接地层增强了天线带宽。单晶天线具有近6 GHz的宽带带宽和4.58 dBi的增益。通过采用所提出的天线阵列,天线增益显著提高到14.9 dBi,同时可在谐振频率为31 GHz时保持24 mm×46 mm的超紧凑尺寸。该天线具有15.73%(28~34 GHz)的较宽阻抗带宽,效率为94%。所提出的设计具有简单的平面结构和来自简单馈送网络的聚焦双波束辐射模式,适用于5G和卫星通信。

关 键 词：dual beam ultra-compact antenna array millimeter wave(mmWave) 5G high gain 

分 类 号：TN82[电子电信—信息与通信工程]