首页|A low-profile metamaterial absorber with ultrawideband reflectionless and wide-angular stability

A low-profile metamaterial absorber with ultrawideband reflectionless and wide-angular stability

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An ultrawideband reflectionless metamaterial absorber(MA)is proposed by replacing the metallic ground with the complementary split-ring resonator(CSRR)structure.The proposed MA exhibits-10 dB reflectivity spectrum from 1 GHz to 20 GHz,which maintains more than 90％absorption from 1.5 GHz to 20 GHz.Furthermore,it achieves angle stability for TE and TM polarization at oblique incident angles up to 40° and 65°,respectively.To achieve broadband absorption spectrum,we have adopted a single-layer high-impedance surface(HIS)loaded with a double-layer magnetic material(MM)structure.To further realize the RCS reduction into a lower frequency range,we have employed the scattering cancellation technology into the traditional metallic ground.Finally,we have fabricated a sample exhibiting the 10 dB RCS reduction from 1 GHz to 20 GHz with a thickness of 10 mm.Measurement and simulation results confirm that the proposed MA exhibits excellent comprehensive performance,making it suitable for many practical applications.

Metamaterial absorber(MA)Magnetic material(MM)High-impedance surface(HIS)Scattering cancellation technologyUltrawidebandWide-angular stable

Feihong Lin、Zhongming Yan、Ping Wang、Yu Wang、Hongcheng Zhou、Haoran Lu

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School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China

Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle,Ministry of Education,Chengdu 610031,China

China Academy of Launch Vehicle Technology,Beijing 100076,China

Foundation of Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle,Ministry of Education

2024

10.1016/j.dt.2023.11.023

防务技术
中国兵工学会

防务技术

CSTPCD
影响因子：0.358
ISSN：2214-9147
年,卷(期)：2024.34(4)