Reconfigurable 2×1 CPW-Fed Rectangular Slot Antenna Array (RSAA) Based on Graphene For Wireless Communications

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2021-06-28 DOI:10.21203/rs.3.rs-621748/v1

D. Elsheakh, O. Dardeer

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引用次数: 0

Abstract

This article presents a 2×1 CPW ultra wideband rectangular slot antenna array (UWB-RSAA) with modified circular slot shape to support high data rate for wireless communications applications. The proposed antenna array dimensions are 0.7λo×0.8λo×0.064λo at the resonant frequency 1.8 GHz and it is fabricated on a commercially available rogers RO4003 substrate (with εr = 3.5), which is fed by using coplanar waveguide (CPW). A graphene layer is added on the other side of the substrate to achieve frequency reconfigurable and improve the antenna array gain. The -10 dB impedance bandwidth of the RSAA extends from 1.7 GHz to 2.6 GHz, from 3.2 to 3.8 GHz and from 5.2 GHz to 7 GHz with peak gain of 7.5 dBi at 6.5 GHz at 0 Volt bias over the operating band with average gain of 4.5 dBi. When the graphene bias is increased to 20 Volt, the antenna bandwidth extend from 1 GHz to 4 GHz and from 5 to 7 GHz with array peak gain 14 dBi at 3.5 GHz and average gain 7.5 dBi. The proposed array achieved linear polarized behaviour over the operating bands to be suitable for short range UWB wireless communications and object detection. All simulation carried out using 3D high frequency structure simulator (HFSS) Ansys ver. 15.

查看原文本刊更多论文

可重构2×1基于石墨烯的无线通信cpw馈电矩形槽天线阵列(RSAA)

本文提出了一种2×1 CPW超宽带矩形槽天线阵列(UWB-RSAA)，它具有改进的圆形槽形状，以支持无线通信应用中的高数据速率。该天线阵列尺寸为0.7λo×0.8λo×0.064λo，谐振频率为1.8 GHz，采用共面波导(CPW)馈电，采用市售rogers RO4003衬底(εr = 3.5)。在衬底的另一侧添加石墨烯层，实现频率可重构，提高天线阵列增益。RSAA的-10 dB阻抗带宽从1.7 GHz扩展到2.6 GHz，从3.2 GHz扩展到3.8 GHz，从5.2 GHz扩展到7 GHz，在工作频带上0伏偏置时，6.5 GHz的峰值增益为7.5 dBi，平均增益为4.5 dBi。当石墨烯偏置增加到20伏时，天线带宽从1 GHz扩展到4 GHz，从5 GHz扩展到7 GHz，阵列在3.5 GHz时峰值增益为14 dBi，平均增益为7.5 dBi。所提出的阵列在工作频带上实现了线性极化行为，适用于短距离UWB无线通信和目标检测。所有仿真均采用三维高频结构模拟器Ansys进行。15.

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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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.

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