Fractal MA and for in-band RCS Reduction of Array Antennas

被引:0
|
作者
Li, Sijia [1 ]
Cao, Xiangyu [1 ]
Gao, Jun [1 ]
Zhao, Yi [1 ]
Zhang, Zhao [1 ]
机构
[1] Air Force Engn Univ, Informat & Nav Coll, Xian 710077, Peoples R China
关键词
Guidewave slot array antennas; Fractal perfect metamaterial absorber; RCS reduction; GUIDE SLOT ANTENNA; POLARIZATION; THIN;
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 miniaturize the perfect metamaterial absorber, a fractal three-order oblique cross dipole slot structure is proposed and investigated. The fractal perfect metamaterial absorber (FPMA) consists of two metallic layers separated by a lossy dielectric substrate. The top layer etched a three-order oblique fractal-shaped cross dipole slot set in a square patch and the bottom one is a solid metal. A prototype with a thickness of 0.0106. (lambda is the wavelength at 3.18GHz) of the FPMA is designed, fabricated, measured, and is loaded on a 1x10 guidewave slot array antennas to reduce the in-band radar cross section (RCS). Experiments are carried out to verify the simulation results, and the experimental results show that the absorption at normal incidence is above 90% from 3.17 to 3.22GHz, and the array antennas significantly obtain the RCS reduction without the radiation deterioration.
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页数:4
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