Design Method of Arc Multiple-Input Multiple-Output Array for Terahertz Imaging

被引：0

作者：

Yu Y. ^{[1
,2
]}

Qiao L. ^{[2
]}

You Y. ^{[2
]}

Zhao Z. ^{[1
,2
]}

机构：

[1] Department of Engineering Physics, Tsinghua University, Beijing

[2] National Engineering Laboratory for Dangerous Articles and Explosives Detection Technologies, Tsinghua University, Beijing

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2019年 / 46卷 / 06期

关键词：

Array design; Imaging systems; Multiple-input multiple-output; Security detection; Terahertz technology;

D O I：

10.3788/CJL201946.0614014

中图分类号：

学科分类号：

摘要：

In this study, we propose a design method to develop an arc multiple-input multiple-output (MIMO) antenna array based on the equivalent array concept. Further, an arc MIMO antenna array containing 50 transmitters and 60 receivers is designed. The simulation experiment and analysis conducted in the terahertz band denote that the imaging resolution of the arc MIMO array is almost equal to the theoretical limit. When compared with an equivalent array containing 3000 transmitters, the main-lobe widths of both the point spread functions are observed to be almost identical, and the positions of the side lobe peaks and valleys correspond accordingly. Subsequently, the equivalence between the arc MIMO array and the equivalent array can be verified based on the simulation results. When compared with the traditional linear MIMO array, the arc MIMO array exhibits a larger imaging range, and its side gating artifacts are almost completely reduced. These factors are important to obtain better imaging results with respect to the side view of the curved surface imaging targets. © 2019, Chinese Lasers Press. All right reserved.

引用

共 15 条

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