Radar cross section reduction metasurface based on random phase gradients

In this paper, we design a novelty metasurface for achieving radar cross section (RCS) reduction. The proposed metasurface can achieve phase difference by rotating its unit cells to different rotating angles as traditional Pancharatnam–Berry (P–B) phase. However, compared with traditional P–B phase...

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Bibliographic Details
Published inApplied physics. B, Lasers and optics Vol. 124; no. 11; pp. 1 - 8
Main Authors Dong, Guoxiang, Zhu, Shitao, He, Yuchen, Xia, Song, Zhang, Anxue, Wei, Xiaoyong, Xu, Zhuo
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2018
Springer Nature B.V
Subjects
Applied physics
Broadband
Electromagnetic radiation
Engineering
Incident waves
Lasers
Metasurfaces
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Radar cross sections
Reduction
Rotation
Stealth technology
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Summary:In this paper, we design a novelty metasurface for achieving radar cross section (RCS) reduction. The proposed metasurface can achieve phase difference by rotating its unit cells to different rotating angles as traditional Pancharatnam–Berry (P–B) phase. However, compared with traditional P–B phase metasurface, the unit cells of this proposed metasurface do not possess certain period, it indicates that random phase gradients can easily produce on this proposed metasurface. The direction and the scalar of these produced random phase gradients are all random, and the incident waves can be diffused by these random phase gradients, realizing wideband, wide angle, polarization-independent RCS reduction. The design of units without fixed period increases the freedom of controlling electromagnetic wave. Both the simulation and experiment show that the proposed metasurface is valuable for stealth technology.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-018-7091-x