Non-resonant broadband RCS reduction based on the patch distribution of a phase gradient metasurface

被引：1
|
作者：
Li, Fengan [1 ]
Huang, Jian [2 ]
机构：
[1] Xiamen Univ, Dept Elect Engn, Xiamen 361000, Peoples R China
[2] Zhejiang Kaishan Compressor Co Ltd, Quzhou 324200, Peoples R China
来源：
APPLIED OPTICS | 2023年 / 62卷 / 03期
基金：
中国国家自然科学基金;
关键词：
REFLECTION; DESIGN;
D O I：
10.1364/AO.478353
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Three units consisting of five, nine, and one square patches are used to construct a phase gradient metasurface with a 2 pi phase distribution within 18.0-28.0 GHz. The three units arranged in one-dimensional (1D) and two-dimensional (2D) directions can precisely control the reflection beam direction in the plane of phase gradient. Rotating 1D and 2D phase gradient directions can convert a single reflected wave into multi-angle low-energy beams, forming the radar cross section (RCS) reduction metasurface. Using 16 x 16 periodic units, a 10 dB RCS reduction in 18.0-25.5 GHz is achieved. (c) 2023 Optica Publishing Group
引用
收藏
页码：720 / 724
页数：5
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