Meta-Dome for Broadband Radar Absorbing Structure

被引：21
|
作者：
Jeong, Heijun [1 ]
Toan Trung Nguyen [1 ]
Lim, Sungjoon [1 ]
机构：
[1] Chung Ang Univ, Sch Elect & Elect Engn, Heukseok Dong 156756, South Korea
来源：
SCIENTIFIC REPORTS | 2018年 / 8卷
基金：
新加坡国家研究基金会;
关键词：
INSENSITIVE METAMATERIAL ABSORBER; WIDE BANDWIDTH; DESIGN; ANGLE; METASURFACE; RADIATION; FERRITE; SURFACE;
D O I：
10.1038/s41598-018-36273-8
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study focused on the radome and proposed an absorber with a meta-dome structure for ultra-wideband radar absorption using an FR-4 dielectric material on the metasurface absorber for protection. In addition to protecting the absorber, the metasurface absorber exhibited ultra-wideband frequency absorptivity from radar signals, with an absorptivity band from 4.6-12 GHz, including the C and X frequency bands of radar signals. A wide incidence angle should also be considered in addition to the absorption frequency band. Experimental results were obtained for all polarization angles at normal incidence for 5-14 GHz. Sensitivity to incident angle from 0 degrees to 40 degrees in the transverse electric mode and 0 degrees to 60 degrees in the transverse magnetic mode were observed. The proposed concept was demonstrated using full-wave simulation and experimental measurements.
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收藏
页数：9
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