Ultra-Broadband and Wide Angularly Stable Electromagnetic Wave Absorber Based on Multilayer Resistive Films for RCS Reduction

被引:0
|
作者
Deng, Guangsheng [1 ,2 ]
Wang, Linjie [1 ,2 ]
Sun, Jing [1 ,2 ]
Yang, Jun [1 ,2 ]
Yin, Zhiping [1 ,2 ]
Li, Ying [1 ,2 ]
Zhang, Wenbing [3 ]
Li, Zelun [4 ]
机构
[1] Hefei Univ Technol, Acad Optoelect Technol, Hefei 230009, Peoples R China
[2] Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Anhui Prov Key Lab Measuring Theory & Precis Instr, Hefei 230009, Peoples R China
[3] Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
[4] Chongqing Univ Sci & Technol, Coll Mech & Power Engn, Chongqing 401331, Peoples R China
基金
中国国家自然科学基金;
关键词
radar scattering cross section (RCS) reduction; ultra-broadband absorption; wide angular stability; DESIGN; ANGLE; ITO;
D O I
10.1109/TEMC.2024.3477612
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this article, an ultrabroadband electromagnetic wave absorber with wide angular stability is proposed. The absorber matrix is formed by multilayers of foams and resistive films with different patterns, and two dielectric matching layers are superimposed on the surface of the absorber to improve the absorption effect of the absorber in the case of oblique incidences. Simulations show that the absorptivity of the proposed design reaches more than 90% in the frequency range of 4.0-50.9 GHz, with a relative absorption bandwidth of 171%. In addition, when the incidence angle reaches 60 degrees, the absorber absorbs more than 90% within the frequency band of 15.3-47.3 GHz and 11.3-52 GHz when transverse electric (TE-) and tra nsverse magnetic TM-polarized waves are incident, respectively. The broadband absorption mechanism of the absorber and the role of the dielectric matching layers on the stability of oblique incidence are analyzed, and samples are prepared and tested to validate the design. The ultra-broadband absorbing bandwidth and wide angular stability make the absorber potentially useful for energy absorption and radar scattering cross section reduction applications.
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页数:10
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