Double-layer Perfect Metamaterial Absorber and Its Application for RCS Reduction of Antenna

被引：0
|
作者：
Li, Sijia [1 ]
Cao, Xiangyu [1 ]
Liu, Tao [1 ]
Yang, Huanhuan [1 ]
机构：
[1] Air Force Engn Univ, Sch Informat & Nav, Xian 710077, Peoples R China
来源：
RADIOENGINEERING | 2014年 / 23卷 / 01期
基金：
中国国家自然科学基金;
关键词：
RCS; perfect metamaterial absorber; tilted beam antenna; circular polarization; BROAD-BAND;
D O I：
暂无
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：
To reduce the radar cross section (RCS) of a circularly polarized (CP) tilted beam antenna, a double-layer perfect metamaterial absorber (DLPMA) in the microwave frequency is proposed. The DLPMA exhibits a wider band by reducing the distance between the three absorption peaks. Absorbing characteristics are analyzed and the experimental results demonstrate that the proposed absorber works well from 5.95 GHz to 6.86 GHz (relative bandwidth 14.1%) with the thickness of 0.5 mm. Then, the main part of perfect electric conductor ground plane of the CP tilted beam antenna is covered by the DLPMA. Simulated and experimental results reveal that the novel antenna performs well from 5.5 GHz to 7 GHz, and its monostatic RCS is reduced significantly from 5.8 GHz to 7 GHz. The agreement between measured and simulated data validates the present design.
引用
收藏
页码：222 / 228
页数：7
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