Wideband low-RCS and gain-enhanced antenna using frequency selective absorber based on patterned graphene

被引：2
作者：
Wang, Fuwei [1 ]
Wang, Yi [1 ]
Zhang, Xiaoyu [1 ]
Liu, Lu [1 ]
Li, Ke [1 ]
Ren, Yuhui [1 ]
机构：
[1] Northwest Univ, Sch Informat Technol, Xian 710127, Shaanxi, Peoples R China
来源：
SCIENTIFIC REPORTS | 2024年 / 14卷 / 01期
基金：
中国国家自然科学基金;
关键词：
SQUARE-LOOP; REDUCTION;
D O I：
10.1038/s41598-024-60143-1
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：
In this paper, a double-layer patterned graphene-based frequency-selective absorber (DGFSA) is proposed as a means of reducing an antenna's radar cross-section (RCS) while simultaneously increasing its gain. The antenna consists of a patch antenna with Multi-Graphene Frequency Selective Absorber (MGFSA) mounted on top. The DGFSA consists of double-layer patterned graphene and a band-pass frequency selective surface (FSS). Two patterned graphene lossy layers with different square resistances are used, which broaden the electromagnetic (EM) wave absorption bandwidth of the DGFSA, thus greatly reducing the out-band monostatic RCSs of the patch antenna. Meanwhile, due to the quasi-Fabry-Perot (F-P) effect, the gain of the proposed antenna is enhanced by 2.4 dB. Additionally, the low-RCS antenna reduces the monostatic RCS from 1.32 to 17 GHz under y-polarization and from 1.4 to 16.8 GHz under x-polarization, respectively. Furthermore, a decrease in the bistatic RCS is accomplished. Results from simulations and measurements match up nicely, which means the antenna we proposed has a good application on the stealth platform.
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页数：13
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