Multiple feed transmit-array antennas with reduced focal distance

A. Clemente, L. Dussopt, R. Sauleau, P. Potier, P. Pouliguen
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引用次数: 6

Abstract

The performances of a single- and a quadruple-feed transmit-array are compared in X-band. The study has been carried out using an in-house CAD tool based on analytical formulas, and ideal focal source and unit-cells in order to provide generic results. We show that a quadruple-feed configuration leads to a reduction of the focal length by about a factor two, with similar performance in terms of gain and aperture efficiency. In the case of quadruple-feed transmit-array, the 3-dB gain bandwidth is improved as compared to the single-feed case from 40% to 65%.
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减少焦距的多馈源发射阵列天线
比较了单馈和四馈发射阵列在x波段的性能。为了提供通用的结果,本研究使用了基于分析公式的内部CAD工具,以及理想的焦点源和单位细胞。我们表明,四进给配置导致焦距减少了大约一个因子2,在增益和孔径效率方面具有相似的性能。在四馈源发射阵列的情况下,与单馈源情况相比,3db增益带宽提高了40%到65%。
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