Composite Right/Left-Handed Leaky-Wave Antenna With High Scanning Rate

被引：15
作者：
Yang, Wanghui [1 ]
Peng, Zhen [1 ]
Ren, Jishan [2 ]
Gao, Jianjun [3 ]
Zhai, Guohua [3 ]
机构：
[1] East China Normal Univ, Sch Commun & Elect Engn, Shanghai 200241, Peoples R China
[2] Shanghai Acad Spaceflight Technol, Inst 8, Shanghai 201109, Peoples R China
[3] East China Normal Univ, Sch Phys & Elect Sci, Shanghai 200241, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2022年 / 21卷 / 12期
关键词：
Composite right/left-handed (CRLH); high scanning rate; leaky-wave antenna (LWA); open stopband (OSB); seamless scanning; WIDE-ANGLE; FREQUENCY;
D O I：
10.1109/LAWP.2022.3199934
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：
The scanning rate of a composite right/left-handed(CRLH) leaky-wave antenna (LWA) is usually determined by the dispersive behavior of the corresponding CRLH unit cell. In thisletter, a novel CRLH unit cell with high dispersive behavior is proposed and investigated. The unit cell is formed by four stubsembedded in a rectangular ring patch, which is grounded with several metal vias. The right-handed characteristic is enhancedby the ring patch, while the left-handed characteristic is reduced by the vias and the gaps between the patch and the stubs. Then, the unit cell is applied to design an LWA with high scanning rate. The measured result shows that the seamless scanning angle of the antenna prototype is 130 degrees (-65 degrees to+65 degrees) within a frequencyrange from 9.3 to 9.93 GHz (i.e., 6.6% for fractional bandwidth).Therefore, the proposed LWA antenna is with a high scanning rateup to 19.7 degrees/% BW.
引用
收藏
页码：2522 / 2526
页数：5
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