基于欺骗表面等离子激元极化子和欺骗局域表面等离子激元的高增益圆极化2 × 2天线阵列

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electromagnetic Waves and Applications Pub Date : 2023-07-10 DOI:10.1080/09205071.2023.2234381

Qianqian Li, Hai‐feng Zhang

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引用次数: 0

摘要

提出了两种基于欺骗表面等离子体激元(SPP)和欺骗局部表面等离子体激元(LSP)的圆极化(CP) 2x2阵列天线。天线I通过馈电网络馈电以增加轴向比(AR)带宽。引入欺骗SPP和欺骗LSP，通过能量局域化来提高增益，该结构可以在一定程度上抑制交叉极化，获得更宽的轴比波束宽度。此外，利用电磁带隙(EBG)抑制表面波，进一步提高增益。天线I的尺寸为1.27λg × 1.27λg × 0.18λg。天线I的阻抗带宽为72% (3.15 ~ 6.75 GHz)， AR带宽为55% (3.97 ~ 6.72 GHz)，峰值增益为11.11 dBi。天线II根据天线I优化两个基板之间的距离，进一步增加增益。

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A high gain circularly polarized 2 × 2 antenna array based on the spoof surface plasmon polariton and spoof localized surface plasmon

Two circularly polarized (CP) 2 × 2 array antennas based on the spoof surface plasmon polariton (SPP) and spoof localized surface plasmon (LSP) are proposed. The antenna I is fed by a feed network to increase the axial-ratio (AR) bandwidth. The spoof SPP and spoof LSP are introduced to increase the gain through energy localization, and the structure can suppress the cross-polarization to a certain extent and obtain a wider axial-ratio beamwidth. In addition, the electromagnetic band gap (EBG) is used to suppress surface waves to further increase the gain. The size of antenna I is 1.27λg × 1.27λg × 0.18λg. The impedance bandwidth and the AR bandwidth of antenna I are 72% (3.15–6.75 GHz) and 55% (3.97–6.72 GHz), respectively, and the peak gain is 11.11 dBi. The antenna II optimizes the distance between the two substrates according to antenna I to further increase the gain.

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来源期刊

Journal of Electromagnetic Waves and Applications 物理-工程：电子与电气

CiteScore

3.60

自引率

7.70%

发文量

116

审稿时长

3.3 months

期刊介绍： Journal of Electromagnetic Waves and Applications covers all aspects of electromagnetic wave theory and its applications. It publishes original papers and review articles on new theories, methodologies, and computational techniques, as well as interpretations of both theoretical and experimental results. The scope of this Journal remains broad and includes the following topics: wave propagation theory propagation in random media waves in composites and amorphous materials optical and millimeter wave techniques fiber/waveguide optics optical sensing sub-micron structures nano-optics and sub-wavelength effects photonics and plasmonics atmospherics and ionospheric effects on wave propagation geophysical subsurface probing remote sensing inverse scattering antenna theory and applications fields and network theory transients radar measurements and applications active experiments using space vehicles electromagnetic compatibility and interferometry medical applications and biological effects ferrite devices high power devices and systems numerical methods The aim of this Journal is to report recent advancements and modern developments in the electromagnetic science and new exciting applications covering the aforementioned fields.