Shaping Bessel beams using source-integrated folded reflectarray.
Shaping Bessel beams using source-integrated folded reflectarray.
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DOI：
10.1364/ol.43.005222
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发表时间：
2018-10
期刊：
影响因子：
3.6
通讯作者：
Jiawei Yang;Yizhu Shen;H. Meng;W. Dou;Sanming Hu
中科院分区：
文献类型：
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作者：
Jiawei Yang;Yizhu Shen;H. Meng;W. Dou;Sanming Hu
这封信提出了一种高度集成的反射型方法来产生无衍射贝塞尔光束使用源集成折叠反射阵列天线（FRA）。FRA不仅可以将馈源辐射的球面波转换为圆锥波，而且可以通过指定反射阵元的相位分布直接产生贝塞尔光束。为了验证这种方法，对毫米波零阶贝塞尔光束发生器和传统准直光束结构进行了分析、设计、制造和测量。理论分析、全波模拟和实验结果之间的良好一致性表明，所提出的FRA成功地产生了无衍射贝塞尔光束，而且，反射阵列元件与馈电源完全集成在同一个低成本的单层印刷电路板上。
This Letter proposes a highly integrated reflection-type approach to generate non-diffracting Bessel beams using a source-integrated folded reflectarray antenna (FRA). The FRA not only transforms spherical waves radiated by the feeding source to conical waves but also directly produces Bessel beams by specifying the phase distribution of reflectarray elements. To validate this approach, a millimeter-wave zero-order Bessel beam generator and a conventional collimated beam structure are analyzed, designed, fabricated, and measured. Good agreement among theoretical analysis, full-wave simulation, and experimental results demonstrate that the proposed FRA successfully generates non-diffracting Bessel beams and, moreover, the reflectarray elements are fully integrated with the feeding source in the same low-cost single-layered printed circuit board.