Ultrawideband Antipodal Tapered Slot Antenna With Gradient Refractive Index Metamaterial Lens

被引：27
|
作者：
Yang, Zhengwei [1 ]
Guo, Linyan [1 ]
Yao, Changli [1 ]
Zhang, Qisheng [1 ]
Xu, Ziyu [1 ]
Guo, Minjie [1 ]
Wang, Ziye [1 ]
机构：
[1] China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2019年 / 18卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Lenses; Gain; Metamaterials; Broadband antennas; Antenna measurements; Refractive index; Antipodal tapered slot antenna (ATSA); gradient refractive index (GRIN) lens; high-gain; ultrawideband; ARTIFICIAL MATERIAL; METASURFACE; ENHANCEMENT; GAIN;
D O I：
10.1109/LAWP.2019.2950676
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：
This letter proposes an ultrawideband and high-gain antipodal tapered slot antenna (ATSA) with a gradient refractive index (GRIN) lens. The GRIN lens consisting six metamaterial lenses is placed in the maximum radiation direction of the ATSA to greatly enhance its radiation capability. We found that the proposed GRIN lens antenna has a wide impedance bandwidth of 175.7 (0.84-13GHz) and -3dB gain bandwidth of 65.8 (5.86-11.6GHz). Its gain is averagely increased by 4.81dB in the whole operating band, and the maximum gain reaches 20.55dBi at 9.5GHz. The simulation and measured results demonstrate that the designed GRIN lens antenna has an excellent performance and is suitable for short-pulse ground penetrating radar systems.
引用
收藏
页码：2741 / 2745
页数：5
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