A Generic Spiral MIMO Array Design Method for Short-Range UWB Imaging
A Generic Spiral MIMO Array Design Method for Short-Range UWB Imaging
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DOI：
10.1109/lawp.2020.2982147
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发表时间：
2020-05
影响因子：
4.2
通讯作者：
Qiao Cheng;Yujie Liu;Haoyang Zhang;Y. Hao
中科院分区：
文献类型：
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作者：
Qiao Cheng;Yujie Liu;Haoyang Zhang;Y. Hao
在这封信中，我们提出了一个通用的设计方法，螺旋多输入多输出（MIMO）天线阵列的短距离超宽带成像应用。这种方法在有效孔径中提供了上级均匀性和低元件遮蔽特性。此外，还提供了若干变量以进一步调整元件的定位。所提出的方法避免了破坏性的阵列拓扑结构，存在于曲线阵列的某些发射和接收阵列组合。两个螺旋MIMO阵列的发展，并显示出更好的聚焦性能比曲线和矩形阵列。实验结果也证实了所提出的螺旋阵列的成像能力。
In this letter, we propose a generic design method of spiral multiple-input–multiple-output (MIMO) antenna arrays for short-range ultrawideband imaging applications. This approach offers superior uniformity and low element shadowing properties in an effective aperture. Moreover, several variables are provided to further tune the positioning of elements. The proposed method avoids a disruptive array topology that exists in the curvilinear array for certain transmit and receive array combinations. Two spiral MIMO arrays are developed and shown to have better focusing property than curvilinear and rectangular arrays. Experimental results are also demonstrated to verify the imaging capability of the proposed spiral array.