Low-RCS Monopolar Patch Antenna Based on a Dual-Ring Metamaterial Absorber

被引：61
作者：
Ren, Junyi [1 ,2 ]
Gong, Shuxi [1 ,2 ]
Jiang, Wen [1 ,2 ]
机构：
[1] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Shaanxi, Peoples R China
[2] Xidian Univ, Collaborat Innovat Ctr Informat Sensing & Underst, Xian 710071, Shaanxi, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Circular patch antenna (CPA); metamaterial absorber (MA); monopole; radar cross section (RCS); REDUCTION;
D O I：
10.1109/LAWP.2017.2776978
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 letter, a novel ring-type layout of metamaterial absorber (MA) is investigated for the first time. Three-layer MA unit cell is duplicated along the ring lattices to obtain the proposed dual-ring MA structure, which possesses desirable electromagnetic wave absorbing characteristics. A center-fed circular patch antenna (CPA) coupled with the dual-ring MA is presented to produce a monopole-like radiation pattern and reduce the in-band radar cross section (RCS). MA array acts as an absorber and a radiator simultaneously in this integrated antenna. Both the simulated and measured results demonstrate that compared with the CPA with an annular ring, the in-band RCS of the proposed antenna is dramatically reduced without degradation of antenna radiation performance.
引用
收藏
页码：102 / 105
页数：4
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