Dual port asymmetrical dumbbell-shaped dielectric resonator-based MIMO antenna with pattern diversity for wideband applications

IF 0.6 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Electromagnetics Pub Date : 2023-11-12 DOI:10.1080/02726343.2023.2279578

Gagandeep Bharti, Bittu Kumar, Dharmendra Kumar, Anand Sharma

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Abstract

ABSTRACTIn this article, a wideband ceramic-based dual port MIMO (Multi Input Multi Output) antenna is investigated and analyzed. Wideband features are obtained with the assistance of asymmetrical dumbbell-shaped cylindrical ceramic. Triple-band circular polarized waves are also obtained with an S-shaped aperture having unequal strip length. Other special characteristic of the proposed MIMO radiator is to achieve bidirectional pattern diversity by placing radiators in opposite direction. Measured outcomes confirm that the proposed radiator offers a fractional bandwidth of 65.04% (4.02 to 7.89 GHz) with less than −25 dB mutual coupling between two identical ports. In between the three frequencies range, i.e., 4.75 to 5.02 GHz, 5.75 to 6.2 GHz, and 7.55 to 7.82 GHz, the value of axial ratio is well below the value of 3 dB. Measured far-field pattern and diversity parameters authorize the appropriateness of the proposed radiator in MIMO system.KEYWORDS: Circular polarizationDielectric Resonator Antenna (DRA)MIMO Antennapattern diversity AcknowledgmentsAuthor, Anand Sharma, wishes to acknowledge the Council of Science and Technology, UP, India, for giving the financial support to conduct this work successfully with notification No. CST/D-2396 dated 24/03/2021.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Council of Science and Technology, U.P. [CST/D-2396 dated 24/03/2021].

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宽带双端口非对称哑铃形介质谐振器MIMO天线

本文对一种基于陶瓷的宽带双端口MIMO(多输入多输出)天线进行了研究和分析。借助非对称哑铃形圆柱陶瓷获得宽带特性。采用不等长s型孔径也可得到三波段圆偏振波。所提出的MIMO散热器的另一个特殊特性是通过在相反方向放置散热器来实现双向方向分集。测量结果证实，所提出的散热器提供65.04%(4.02至7.89 GHz)的分数带宽，两个相同端口之间的互耦小于- 25 dB。在4.75 ~ 5.02 GHz、5.75 ~ 6.2 GHz和7.55 ~ 7.82 GHz三个频率范围内，轴比值远低于3db。测量的远场方向图和分集参数验证了所提出的辐射器在MIMO系统中的适用性。关键词:圆极化介质谐振器天线(DRA)MIMO天线方向分集致谢作者Anand Sharma希望感谢印度北方邦科学技术委员会(Council of Science and Technology, UP, India)提供的资金支持，并以第5号通知成功开展了这项工作。CST/D-2396日期为2021年3月24日。披露声明作者未报告潜在的利益冲突。本研究得到了美国科学技术委员会的支持[CST/D-2396，日期为24/03/2021]。

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来源期刊

Electromagnetics 工程技术-工程：电子与电气

CiteScore

1.60

自引率

12.50%

发文量

审稿时长

6 months

期刊介绍： Publishing eight times per year, Electromagnetics offers refereed papers that span the entire broad field of electromagnetics and serves as an exceptional reference source of permanent archival value. Included in this wide ranging scope of materials are developments in electromagnetic theory, high frequency techniques, antennas and randomes, arrays, numerical techniques, scattering and diffraction, materials, and printed circuits. The journal also serves as a forum for deliberations on innovations in the field. Additionally, special issues give more in-depth coverage to topics of immediate importance. All submitted manuscripts are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. Submissions can be made via email or postal mail.