Fan-Shaped Multibeam Metasurface Lens Antenna for High Crossover Levels and Stable Radiation Gain

被引：0
|
作者：
Yin, Si-Yu [1 ]
Li, Jia-Lin [2 ]
Zhang, Yi-Ming [3 ,4 ]
Ye, Qi-Cheng [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Phys, Chengdu 611731, Peoples R China
[2] Univ Elect Sci & Technol China, Yangtze Delta Region Inst Huzhou, Huzhou 313098, Peoples R China
[3] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Peoples R China
[4] Sun Yat Sen Univ, Guangdong Prov Key Lab Optoelect Informat Proc Ch, Guangzhou 510006, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 06期
关键词：
Fan-shaped; high beam-crossover level; metasurface lens antenna; multibeam; stable radiation gain; HIGH-BEAM CROSSOVER; ARRAY;
D O I：
10.1109/LAWP.2024.3370262
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 fan-shaped multibeam antenna based on a metasurface (MS) lens is first proposed and validated in this letter. It features stable radiation gain and high beam-crossover levels that are attractive in high-quality beam-scanning applications. Asimple multiport pillbox antenna is employed as the source antenna, while an MS lens is placed above it with an air gap for beamforming. The proposedMS antenna targeting 5G millimeter-wave band has a -10 dB impedance bandwidth from 26.9 to 29.9 GHz. It can generate five beams with a scanning range of +/- 30 degrees. Remarkably, the beam-crossover levels are higher than -1.9 dB at the central frequency. The gain variation for each beam is within 1 dB for a 12 degrees coverage range and 3.5dBfor the whole +/- 30 degrees angle coverage range. Compared with previous reports, the proposed MS antenna shows great advantages in terms of electric performance and physical properties.
引用
收藏
页码：1809 / 1813
页数：5
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