中国物理B ›› 2016, Vol. 25 ›› Issue (9): 94101-094101.doi: 10.1088/1674-1056/25/9/094101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Ultra-thin single-layer transparent geometrical phase gradient metasurface and its application to high-gain circularly-polarized lens antenna

Tang-Jing Li(李唐景), Jian-Gang Liang(梁建刚), Hai-Peng Li(李海鹏), Ya-Qiao Liu(刘亚峤)   

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • 收稿日期:2016-03-03 修回日期:2016-05-06 出版日期:2016-09-05 发布日期:2016-09-05
  • 通讯作者: Tang-Jing Li E-mail:litangjing666@sina.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61372034).

Ultra-thin single-layer transparent geometrical phase gradient metasurface and its application to high-gain circularly-polarized lens antenna

Tang-Jing Li(李唐景), Jian-Gang Liang(梁建刚), Hai-Peng Li(李海鹏), Ya-Qiao Liu(刘亚峤)   

  1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China
  • Received:2016-03-03 Revised:2016-05-06 Online:2016-09-05 Published:2016-09-05
  • Contact: Tang-Jing Li E-mail:litangjing666@sina.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61372034).

摘要: A new method to design an ultra-thin high-gain circularly-polarized antenna system with high efficiency is proposed based on the geometrical phase gradient metasurface (GPGM). With an accuracy control of the transmission phase and also the high transmission amplitude, the GPGM is capable of manipulating an electromagnetic wave arbitrarily. A focusing transmission lens working at Ku band is well optimized with the F/D of 0.32. A good focusing effect is demonstrated clearly by theoretical calculation and electromagnetic simulation. For further application, an ultra-thin single-layer transmissive lens antenna based on the proposed focusing metasurface operating at 13 GHz is implemented and launched by an original patch antenna from the perspective of high integration, simple structure, and low cost. Numerical and experimental results coincide well, indicating the advantages of the antenna system, such as a high gain of 17.6 dB, the axis ratio better than 2 dB, a high aperture efficiency of 41%, and also a simple fabrication process based on the convenient print circuit board technology. The good performance of the proposed antenna indicates promising applications in portable communication systems.

关键词: geometrical phase gradient metasurface, circular polarization, lens antenna

Abstract: A new method to design an ultra-thin high-gain circularly-polarized antenna system with high efficiency is proposed based on the geometrical phase gradient metasurface (GPGM). With an accuracy control of the transmission phase and also the high transmission amplitude, the GPGM is capable of manipulating an electromagnetic wave arbitrarily. A focusing transmission lens working at Ku band is well optimized with the F/D of 0.32. A good focusing effect is demonstrated clearly by theoretical calculation and electromagnetic simulation. For further application, an ultra-thin single-layer transmissive lens antenna based on the proposed focusing metasurface operating at 13 GHz is implemented and launched by an original patch antenna from the perspective of high integration, simple structure, and low cost. Numerical and experimental results coincide well, indicating the advantages of the antenna system, such as a high gain of 17.6 dB, the axis ratio better than 2 dB, a high aperture efficiency of 41%, and also a simple fabrication process based on the convenient print circuit board technology. The good performance of the proposed antenna indicates promising applications in portable communication systems.

Key words: geometrical phase gradient metasurface, circular polarization, lens antenna

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
29.27.Hj (Polarized beams) 84.40.Ba (Antennas: theory, components and accessories)