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A Polarization Conversion Coding Metasurface for Broadband Radar Cross-Section Reduction.

Authors :
Zhang, Man
Yang, Xiaoqing
Luo, Jiefang
Zhou, Tong
Li, Zhe
Lei, Xuexue
Chen, Junlong
Source :
Journal of Electronic Materials; Sep2020, Vol. 49 Issue 9, p5561-5569, 9p
Publication Year :
2020

Abstract

We have designed a polarization conversion coding metasurface (CM) for broadband radar cross-section reduction. The CM is made up of a kind of deformed bowtie-shaped particle and its mirror, named "0" and "1", respectively, which can realize cross-polarization conversion under the vertical incidence of a linearly polarized wave. According to the coding sequence optimized by the genetic algorithm, the two kinds of unit are arranged to form a design, called a 1-bit CM, which can scatter electromagnetic waves in various directions. The simulation results demonstrate that the two kinds of unit can achieve more than a 90% polarization conversion ratio, and the whole CM can realize more than a 10-dB reduction of monostatic radar cross-section (RCS) from 8.8 GHz to 20.9 GHz, while the maximum RCS reduction of 32.5 dB can be obtained at 14 GHz under the normal incidence of x- and y-polarized waves. The experimental results are almost identical to the simulation. Thus, we believe that the designed 1-bit CM can be well applied for the stealth business. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
03615235
Volume :
49
Issue :
9
Database :
Complementary Index
Journal :
Journal of Electronic Materials
Publication Type :
Academic Journal
Accession number :
147269804
Full Text :
https://doi.org/10.1007/s11664-020-08295-4