具有基板集成和增强带宽的i形槽网格天线阵列

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of electromagnetic engineering and science Pub Date : 2023-09-30 DOI:10.26866/jees.2023.5.r.188

Zhiyi Li, Shengjie Wang, Fan Li, Lin Lin, Hongzheng Zeng

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引用次数: 0

摘要

针对无线电力传输中的电磁能量传输问题，设计了一种具有4个i型槽的平面基板集成栅格天线阵列。在微带线上增加一个横向短段以产生额外的共振;因此，阻抗带宽从1.9%提高到6%。在完美电导体(PEC)片上形成4个i型槽，实现轴向辐射。通过刻蚀四个间隙来改进和压缩带内阻抗特性。采用特征模态理论对其工作机理进行了分析。最后，测量结果表明，天线的工作带宽为5% (|S11| <- 10db(从5.67 GHz到5.96 GHz)。在工作波段，视轴增益在9.3 ~ 11.3 dBi范围内变化。横向极化水平低于-30 dB。因此，所提出的阵列适合用于无线电力传输系统和其他相关应用。

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An I-Shaped Slot Grid Antenna Array with Substrate Integration and Enhanced Bandwidth

Aimed to transmit electromagnetic energy in wireless power transfer, a planar substrate-integrated grid antenna array with four I-shaped slots was designed. A transverse stub was added to the microstrip line to produce additional resonance; hence, the impedance bandwidth was enhanced from 1.9% to 6%. Four I-shaped slots were formed on a perfect electric conductor (PEC) sheet to realize boresight radiation. Four gaps were etched to refine and compress the in-band impedance property. Furthermore, characteristic mode theory was adopted to analyze the working mechanism. Finally, the measurement results showed that the antenna had an operating bandwidth of 5% (|S₁₁| < -10 dB from 5.67 GHz to 5.96 GHz). In the operating band, the boresight gain varied from 9.3 dBi to 11.3 dBi. The cross-polarization level was lower than -30 dB on the boresight. Therefore, the proposed array is suitable for use in wireless power transfer systems and other related applications.

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来源期刊

Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.90

自引率

17.40%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.