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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A low-profile transmitarray antenna using square patch elements with cross dipole slots and vias
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A low-profile transmitarray antenna using square patch elements with cross dipole slots and vias

机译：使用方形贴片元件和交叉偶极子槽和过孔的低剖面发射阵列天线

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摘要

A low-profile transmitarray antenna comprising only a single-layer substrateand operating at X-band is presented in this paper. The element consists oftwo identical metallic layers placed on the upper and lower surfaces of asingle-layer substrate and four vias connecting two metal layers through thesubstrate. The thickness of the element is 3 mm, corresponding to only 0.1 λ atthe design frequency. Metallic layers contain square patches etched with crossdipole slots. By varying the side length of the square patch and adjusting thedimensions of cross dipole slots as well as the locations of the vias, a phaseshift of 340 is achieved. A transmitarray using the novel elements is simulated,fabricated, and tested. The simulation and the measurement agree welland the gain at 10 GHz is 25.4 dBi, equivalent to an aperture efficiency of 49%.The low-profile configuration and satisfactory behavior make this design anappealing candidate for space applications.
机译：本文提出了一种仅包含单层基板并在X波段工作的薄型发射阵列天线。该元件由放置在单层基板上表面和下表面上的两个相同的金属层以及连接两个金属层穿过基板的四个过孔组成。元件的厚度为3 mm，在设计频率下仅相当于0.1λ。金属层包含刻有交叉偶极子缝的正方形贴片。通过改变方形贴片的边长并调整交叉偶极缝隙的尺寸以及通孔的位置，可以实现340的相移。模拟，制作和测试了使用新型元件的发射阵列。仿真和测量结果吻合良好，在10 GHz处的增益为25.4 dBi，相当于49％的孔径效率。低调的配置和令人满意的性能使该设计成为太空应用的理想之选。

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