中国物理B ›› 2024, Vol. 33 ›› Issue (1): 14201-14201.doi: 10.1088/1674-1056/acfa8a

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A 1-bit electronically reconfigurable beam steerable metasurface reflectarray with multiple polarization manipulations

Yan Shi(史琰), Xi-Ya Xu(徐茜雅), Shao-Ze Wang(王少泽), Wen-Yue Wei(魏文岳), and Quan-Wei Wu(武全伟)   

  1. School of Electronic Engineering, Xidian University, Xi'an 710071, China
  • 收稿日期:2023-07-24 修回日期:2023-09-09 接受日期:2023-09-18 出版日期:2023-12-13 发布日期:2023-12-28
  • 通讯作者: Yan Shi E-mail:shiyan@mail.xidian.edu.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2021YFA1401001) and the National Natural Science Foundation of China (Grant No. 62371355).

A 1-bit electronically reconfigurable beam steerable metasurface reflectarray with multiple polarization manipulations

Yan Shi(史琰), Xi-Ya Xu(徐茜雅), Shao-Ze Wang(王少泽), Wen-Yue Wei(魏文岳), and Quan-Wei Wu(武全伟)   

  1. School of Electronic Engineering, Xidian University, Xi'an 710071, China
  • Received:2023-07-24 Revised:2023-09-09 Accepted:2023-09-18 Online:2023-12-13 Published:2023-12-28
  • Contact: Yan Shi E-mail:shiyan@mail.xidian.edu.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2021YFA1401001) and the National Natural Science Foundation of China (Grant No. 62371355).

摘要: A 1-bit electronically controlled metasurface reflectarray is presented to achieve beam steering with multiple polarization manipulations. A metsurface unit cell loaded by two PIN diodes is designed. By switching the two PIN diodes between ON and OFF states, the isotropic and anisotropic reflections can be flexibly achieved. For either the isotropic reflection or the anisotropic reflection, the two operation states achieve the reflection coefficients with approximately equal magnitude and 180° out of phase, thus giving rise to the isotropic/anisotropic 1-bit metasurface unit cells. With the 1-bit unit cells, a 12-by-12 metasurface reflectarray is optimally designed and fabricated. Under either y- or x-polarized incident wave illumination, the reflectarray can achieve the co-polarized and cross-polarized beam scanning, respectively, with the peak gains of 20.08 dBi and 17.26 dBi within the scan range of about ±50°. With the right-handed circular polarization (RHCP) excitation, the left-handed circular polarization (LHCP) radiation with the peak gain of 16.98 dBic can be achieved within the scan range of ±50°. Good agreement between the experimental results and the simulation results are observed for 2D beam steering and polarization manipulation capabilities.

关键词: electronically controlled, metasurface reflectarray, beam steering, polarization manipulation

Abstract: A 1-bit electronically controlled metasurface reflectarray is presented to achieve beam steering with multiple polarization manipulations. A metsurface unit cell loaded by two PIN diodes is designed. By switching the two PIN diodes between ON and OFF states, the isotropic and anisotropic reflections can be flexibly achieved. For either the isotropic reflection or the anisotropic reflection, the two operation states achieve the reflection coefficients with approximately equal magnitude and 180° out of phase, thus giving rise to the isotropic/anisotropic 1-bit metasurface unit cells. With the 1-bit unit cells, a 12-by-12 metasurface reflectarray is optimally designed and fabricated. Under either y- or x-polarized incident wave illumination, the reflectarray can achieve the co-polarized and cross-polarized beam scanning, respectively, with the peak gains of 20.08 dBi and 17.26 dBi within the scan range of about ±50°. With the right-handed circular polarization (RHCP) excitation, the left-handed circular polarization (LHCP) radiation with the peak gain of 16.98 dBic can be achieved within the scan range of ±50°. Good agreement between the experimental results and the simulation results are observed for 2D beam steering and polarization manipulation capabilities.

Key words: electronically controlled, metasurface reflectarray, beam steering, polarization manipulation

中图分类号:  (Wave propagation, transmission and absorption)

  • 42.25.Bs
42.81.Gs (Birefringence, polarization) 81.05.Xj (Metamaterials for chiral, bianisotropic and other complex media)