Design and Analysis of a Bow-Tie Slot-Coupled Wideband Metasurface Antenna

被引：11
|
作者：
Cheng, You-Feng [1 ]
Ding, Xiao [2 ]
Xu, Xiaomin [1 ]
Zhong, Xuanming [1 ]
Liao, Cheng [1 ]
机构：
[1] Southwest Jiaotong Univ, Inst Electromagnet, Chengdu 610031, Sichuan, Peoples R China
[2] Univ Elect Sci & Technol China, Sch Phys, Chengdu 610054, Sichuan, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2019年 / 18卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Bow-tie-shaped slot; coplanar waveguide (CPW); metasurface; wideband antenna;
D O I：
10.1109/LAWP.2019.2916380
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：
A wideband metasurface antenna is designed and analyzed in this letter. The dual-layer metasurface is fed with a stubloaded bow-tie-shaped slot. The dual-layer metasurface is fed with a stub-loaded bow-tie-shaped slot. By using the coplanar waveguide feeding structure, three resonant modes (TM10, TM20, andTM(30)) are excited, and a wide operation band is obtained. Besides, in order to achieve a high front-to-back ratio and enhance the realized radiation gain in the whole band, a shorted reflector is implemented behind and close to the slot. The proposed antenna with an overall thickness of 0.13 lambda(0) (lambda(0) is the free-space wavelength at the central operation frequency) is simulated, fabricated, and measured. Measured results show that the antenna has a wide impedance bandwidth from 6.15 to 10.75 GHz (54.4%) with good radiation performance.
引用
收藏
页码：1342 / 1346
页数：5
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