中国物理B ›› 2021, Vol. 30 ›› Issue (6): 64101-064101.doi: 10.1088/1674-1056/abdb23

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Characteristic mode analysis of wideband high-gain and low-profile metasurface antenna

Kun Gao(高坤), Xiang-Yu Cao(曹祥玉), Jun Gao(高军), Huan-Huan Yang(杨欢欢), and Jiang-Feng Han(韩江枫)   

  1. Information and Navigation College of Air Force Engineering University, Xi'an 710077, China
  • 收稿日期:2020-10-06 修回日期:2020-12-24 接受日期:2021-01-13 出版日期:2021-05-18 发布日期:2021-05-25
  • 通讯作者: Kun Gao, Xiang-Yu Cao E-mail:gkmicrowave@163.com;xiangyucaokdy@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61671464 and 61801508), the Postdoctoral Innovative Talents Support Program of China (Grant No. BX20180375), and the Natural Science Research Fund of Shaanxi Province, China (Grant No. 2019JQ-103).

Characteristic mode analysis of wideband high-gain and low-profile metasurface antenna

Kun Gao(高坤), Xiang-Yu Cao(曹祥玉), Jun Gao(高军), Huan-Huan Yang(杨欢欢), and Jiang-Feng Han(韩江枫)   

  1. Information and Navigation College of Air Force Engineering University, Xi'an 710077, China
  • Received:2020-10-06 Revised:2020-12-24 Accepted:2021-01-13 Online:2021-05-18 Published:2021-05-25
  • Contact: Kun Gao, Xiang-Yu Cao E-mail:gkmicrowave@163.com;xiangyucaokdy@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61671464 and 61801508), the Postdoctoral Innovative Talents Support Program of China (Grant No. BX20180375), and the Natural Science Research Fund of Shaanxi Province, China (Grant No. 2019JQ-103).

摘要: A wideband high-gain and low-profile metasurface antenna is proposed by analyzing characteristic quantities and parameters in the characteristic modes (CMs). The detailed modal current and modal weighting coefficient are analyzed to explain the broadband operation and high gain. A dominant characteristic mode is well excited, leading to a broadband operation. The mode behaviors of the excitation are changed to suppress the unwanted higher-order modes and improve the radiation performance by changing the widths of two patches. The measured impedance bandwidth for -10 dB is 39.8% (5.3 GHz-7.94 GHz) with a gain of 7.8 dBi-10.04 dBi over the operating bandwidth.

关键词: characteristic mode analysis, wideband, high gain, metasurface antenna

Abstract: A wideband high-gain and low-profile metasurface antenna is proposed by analyzing characteristic quantities and parameters in the characteristic modes (CMs). The detailed modal current and modal weighting coefficient are analyzed to explain the broadband operation and high gain. A dominant characteristic mode is well excited, leading to a broadband operation. The mode behaviors of the excitation are changed to suppress the unwanted higher-order modes and improve the radiation performance by changing the widths of two patches. The measured impedance bandwidth for -10 dB is 39.8% (5.3 GHz-7.94 GHz) with a gain of 7.8 dBi-10.04 dBi over the operating bandwidth.

Key words: characteristic mode analysis, wideband, high gain, metasurface antenna

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

  • 41.20.Jb
73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))