Meta-Gaps for Mechanically Reconfigurable Phased Arrays

被引:0
|
作者
Williams, D. Elliott [1 ]
Hajimiri, Ali [1 ]
机构
[1] CALTECH, Caltech Holist Integrated Circuits Lab, Pasadena, CA 91125 USA
来源
2022 52ND EUROPEAN MICROWAVE CONFERENCE (EUMC) | 2022年
关键词
phased arrays; adaptive arrays; metamaterials; flexible electronics; origami antennas; kirigami antennas; measurement techniques; optimization; metaheuristics; simulated annealing; genetic algorithms; particle swarm optimization;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Meta-material inspired switched passive networks on flexible sheets can be placed in the unused area between antennas in Origami and Kirigami shape-changing arrays. These meta-gaps can manipulate the near-field environment in order to compensate for the increased spacing in these arrays. Their flexibility allows meta-gaps to easily fold and deploy in both deployable arrays and mechanically shape-changing phased arrays. This work explores the promise of meta-gaps through the measurement of a 5-by-5 element A-spaced array with 40 meta-gap sheets and 960 switches. The complexity of optimizing such a high-dimensional system is discussed and solutions are proposed. Measurement results demonstrate that in our implementation, meta-gaps increase the broadside main beam power by 0.9 dB, suppress the sidelobes by 4.6 dB, and enhance the field-of-view by 23 degrees compared to a ground plane.
引用
收藏
页码:656 / 659
页数:4
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