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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Single-feed slotted-patch antenna loaded with metasurface for CubeSat applications
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Single-feed slotted-patch antenna loaded with metasurface for CubeSat applications

机译：用于CubeSat应用程序的Metasurface加载的单馈开槽 - 贴片天线

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摘要

In this paper, a metasurface-based antenna with broadband circularly polarized (CP) radiation is presented for S-band CubeSat applications. It consists of a single-feed slotted patch and a metasurface composed of 4 × 4 periodic metallic plates. The patch is sandwiched between the finite metasurface and ground plane to excite surface wave resonances for the broadband operation. The antenna is designed to achieve the geometry and characteristics, which are compatible with any CubeSat standard structure. The final prototype with an overall size of 0.64λ_(min) × 0.64λ_(min) × 0.026λ_(min) (λ_(min) is the free space wavelength referring to the lowest operational frequency) has been realized and tested. The experiments result in a |S_(11)| < −10 dB bandwidth of 24.64% (1.85-2.37 GHz), an axial ratio < 3-dB bandwidth of 15.23% (1.94-2.26 GHz), and a broadside realized gain of 5.6 to 6.7 dBic. Moreover, the antenna achieves a good broadside right-hand CP radiation with symmetric pattern, high front-to-back ratio, and high radiation efficiency.
机译：本文介绍了具有宽带圆极化（CP）辐射的基于元的基于表面的天线，用于S波段CubeSat应用。它由单馈开槽贴片和由4×4周期性金属板组成的元曲面组成。贴片夹在有限的元表面和接地平面之间，以激发宽带操作的表面波共振。天线旨在实现与任何立方标准结构兼容的几何形状和特性。总体尺寸为0.64λ_（min）×0.64λ_（min）×0.026λ_（min）（λ_（min）的最终原型是参考最低运行频率的自由空间波长）已经实现和测试。实验结果为A | S_（11）| <-10 dB带宽为24.64％（1.85-2.37 GHz），轴向比<3-dB带宽为15.23％（1.94-2.26GHz），广泛实现增益为5.6至6.7 dbic。此外，天线以对称的图案，高前后比和高辐射效率实现了良好的宽侧右CP辐射。

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