A novel high-gain omnidirectional antenna using near-zero-index metamaterials

被引:5
作者
Guo, Yao [1 ]
Zhao, Jing [2 ]
Zhao, Xiaopeng [1 ]
机构
[1] Northwestern Polytech Univ, Dept Appl Phys, Xian 710129, Peoples R China
[2] Medtron Plc, Boulder, CO USA
基金
中国国家自然科学基金;
关键词
gain enhancement; near-zero-index metamaterial; omnidirectional antenna; PATCH ANTENNA; LOW-PROFILE; DESIGN;
D O I
10.1002/mop.33274
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
Antennas applied in wireless communications are required to have omnidirectional radiation in horizontal plane and low profile. But, the low profile make the antenna challenging to obtain high horizontal gain. In this paper, we proposed a novel high gain antenna with near-zero-index metamaterial (NZIM). The horizontal gain of antenna with omnidirectional radiation is improved by 1.30 dBi. In addition, the increment of horizontal gain increases as the refractive index of NZIM unit approaches zero. It can be applied to further optimize the horizontal gain. This novel antenna has low profile (about 0.034 lambda) with high horizontal gain and omnidirectional radiation, which is suitable for wireless communications.
引用
收藏
页码:1280 / 1287
页数:8
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