中国物理B ›› 2018, Vol. 27 ›› Issue (11): 118401-118401.doi: 10.1088/1674-1056/27/11/118401

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Dual-polarized lens antenna based on multimode metasurfaces

Hao-Fang Wang(王浩放), Zheng-Bin Wang(王正斌), Yong Cheng(程勇), Ye-Rong Zhang(张业荣)   

  1. 1 College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    2 State Key Laboratory of Millimeter waves, Nanjing 210096, China
  • 收稿日期:2018-07-17 修回日期:2018-08-23 出版日期:2018-11-05 发布日期:2018-11-05
  • 通讯作者: Zheng-Bin Wang, Ye-Rong Zhang E-mail:wangzb@njupt.edu.cn;zhangyr@njupt.edu.cn
  • 基金资助:

    Project supported by the Open Research Program of the State Key Laboratory of Millimeter Waves, China (Grant No. K201926), the Postgraduate Research & Practice Innovation Program of Jiangsu Province, China, and the Nanjing University of Posts and Telecommunications Scientific Foundation, China (Grant No. NY215137).

Dual-polarized lens antenna based on multimode metasurfaces

Hao-Fang Wang(王浩放)1,2, Zheng-Bin Wang(王正斌)1,2, Yong Cheng(程勇)1, Ye-Rong Zhang(张业荣)1   

  1. 1 College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    2 State Key Laboratory of Millimeter waves, Nanjing 210096, China
  • Received:2018-07-17 Revised:2018-08-23 Online:2018-11-05 Published:2018-11-05
  • Contact: Zheng-Bin Wang, Ye-Rong Zhang E-mail:wangzb@njupt.edu.cn;zhangyr@njupt.edu.cn
  • Supported by:

    Project supported by the Open Research Program of the State Key Laboratory of Millimeter Waves, China (Grant No. K201926), the Postgraduate Research & Practice Innovation Program of Jiangsu Province, China, and the Nanjing University of Posts and Telecommunications Scientific Foundation, China (Grant No. NY215137).

摘要:

We propose a dual-polarized lens antenna system based on isotropic metasurfaces for 12 GHz applications. The metasurface lens is composed of subwavelength unit cells (0.24λ0) with metallic strips etched on the top and bottom sides of the unit cell, and a cross-slots metallic layer in the middle that serves as the ground. The multimode resonance in the unit cell can realize a large phase shift (covering 0°-360°), and the total transmission efficiency of the lens is above 80%. The feed antenna at the focal point of the lens is a broadband dual-polarized microstrip antenna. Both the simulated and the measured results demonstrate that the dual-polarized lens antenna system can realize a gain of more than 16.1 dB, and an input port isolation of more than 25.0 dB.

关键词: dual polarization, metasurfaces, lens antenna, multimode resonance, low-profile

Abstract:

We propose a dual-polarized lens antenna system based on isotropic metasurfaces for 12 GHz applications. The metasurface lens is composed of subwavelength unit cells (0.24λ0) with metallic strips etched on the top and bottom sides of the unit cell, and a cross-slots metallic layer in the middle that serves as the ground. The multimode resonance in the unit cell can realize a large phase shift (covering 0°-360°), and the total transmission efficiency of the lens is above 80%. The feed antenna at the focal point of the lens is a broadband dual-polarized microstrip antenna. Both the simulated and the measured results demonstrate that the dual-polarized lens antenna system can realize a gain of more than 16.1 dB, and an input port isolation of more than 25.0 dB.

Key words: dual polarization, metasurfaces, lens antenna, multimode resonance, low-profile

中图分类号:  (Antennas: theory, components and accessories)

  • 84.40.Ba
41.20.Jb (Electromagnetic wave propagation; radiowave propagation)