Flexible Phased Array Shape Reconstruction
Flexible Phased Array Shape Reconstruction
复制标题
灵活的相控阵形状重建
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
A. Hajimiri
中科院分区：
文献类型：
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作者：
O. Mizrahi;Austin C. Fikes;A. Hajimiri
轻巧、灵活的相控阵通过在部署和运行过程中动态改变形状来实现新的应用。然而，这些形状变化必须通过改变元件激励来跟踪和解释，以便阵列继续正确操作。我们提出了一个框架，用于重建的形状的灵活的相控阵列中的天线之间的互耦的测量。该框架使用无源2.5 GHz相控阵列和固定到8个不同的已知的凸曲率和凹曲率半径的框架。我们的研究结果表明，重建形状的能力，在0.04λ内的位置误差，即使在相控阵列是弯曲显着的情况下，没有任何先进的知识或额外的信息。该框架是模块化的，可以很容易地适应其他相控阵系统与不同的天线，频率和物理约束。
Lightweight, flexible phased arrays enable new applications by dynamically changing shape during deployment and operation. However, these shape changes must be tracked and accounted for by changing the element excitation in order for the array to continue proper operation. We propose a framework for reconstructing the shape of a flexible phased array using only measurements of mutual coupling between the antennas in the array. The framework is demonstrated using a passive 2.5 GHz phased array and fixed to 8 different frames of known radii of convex and concave curvature. Our results show the ability to reconstruct shape to within ≈ 0.04λ position error, even in cases where the phased array is bent dramatically, without any advanced knowledge or additional information. The framework is modular and can be easily adapted to other phased array systems with different antennas, frequencies, and physical constraints.