Reconfigurable Coding Metamaterial for Enhancing RCS Reduction

Reconfigurable coding metamaterial is created by combining coding metamaterials with traditional microwave absorbers. Using 3D-printing, two elements with a specific phase difference are assembled into a jigsaw-like metamaterial. The 3D-printed element shells and insertable bottom plate make traditi...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2023-11, Vol.71 (11), p.1-1
Main Authors: Fang, Xiang, Luo, Jie, Wu, Zhuang, Zeng, Yanan, Yang, Yuntao, Qiao, Shi, Tan, Yonghong, Zou, Yanhong
Format: Article
Language:English
Subjects:
3D printing
Absorption
Coding
coding metamaterials
Electromagnetic scattering
Encoding
Frequencies
Frequency ranges
Magnetic materials
Metamaterials
Microwave absorbers
Microwave technology
Physics
Radar cross sections
RCS reduction
reconfigurable
Reconfiguration
Reduction
Scattering
Stealth technology
Three dimensional printing
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Summary:Reconfigurable coding metamaterial is created by combining coding metamaterials with traditional microwave absorbers. Using 3D-printing, two elements with a specific phase difference are assembled into a jigsaw-like metamaterial. The 3D-printed element shells and insertable bottom plate make traditional microwave absorbers reconfigurable, while incorporating elements with certain phase differences imbues them with the scattering characteristics of coding metamaterials. This combination of coding characteristics and reconfigurability allows for flexible regulation of absorption and scattering in different frequency ranges. By adjusting the ratio of the two elements, scattering and absorption in different frequency bands can be optimized for radar cross-section (RCS) reduction. When the ratio of element 1 to the total number of elements is 0.625, the reconfigurable coding metamaterial demonstrates RCS reduction below -10 dB throughout the 5.3-18 GHz frequency range. Our work provides a promising and extensible direction for developing radar stealth technology.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2023.3294752