Research Progress of Electrically Controlled Reconfigurable Polarization Manipulation Using Metasurface
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摘要: 作为一种由众多亚波长单元周期性或非周期性排列构成的二维人工结构,超表面展示了其在电磁波极化调控领域的卓越能力,开辟了电磁波调控的新途径。电控可重构极化调控超表面,可通过电信号实时调整其结构或材料特性进而动态地调控电磁波的极化状态,因而受到广泛研究关注。该文全面综述了电控可重构极化调控超表面的发展历程,详细探讨了微波段具备不同传输特性的电控可重构极化调控超表面的技术进展,并对电控可重构极化调控超表面技术的未来发展进行了深入的探讨和展望。Abstract: Metasurfaces are two-dimensional artificial structures with numerous subwavelength elements arranged periodically or aperiodically. They have demonstrated their exceptional capabilities in electromagnetic wave polarization manipulation, opening new avenues for manipulating electromagnetic waves. Metasurfaces exhibiting electrically controlled reconfigurable polarization manipulation have garnered widespread research interest. These unique metasurfaces can dynamically adjust the polarization state of electromagnetic waves through real-time modification of their structure or material properties via electrical signals. This article provides a comprehensive overview of the development of metasurfaces exhibiting electrically controlled reconfigurable polarization manipulation and explores the technological advancements of metasurfaces with different transmission characteristics in the microwave region in detail. Furthermore, it delves into and anticipates the future development of this technology.
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表 1 y极化入射时极化方位角随偏置电压变化情况(°)[45]
Table 1. Variation of polarization angle with bias voltage under y-polarized wave incidence (°)[45]
Cy (pF) Cx (pF) 0.18 0.20 0.22 0.24 0.26 0.30 0.18 –0.007 11.82 24.69 35.77 45.23 59.23 0.20 –12.58 0.008 14.09 26.24 35.33 50.67 0.22 –28.89 –15.33 0 13.12 22.69 38.08 0.24 –43.90 –29.94 –13.82 0.004 9.937 25.38 0.26 –54.39 –40.57 –24.23 –10.13 –0.001 15.64 0.30 –69.27 –56.03 –40.10 –26.13 –15.97 –0.006 表 2 透射型电控可重构极化调控超表面总结
Table 2. Summary of transmission-type electronically controlled reconfigurable polarization modulation metasurface
文献 结构类型 电控器件 工作频段(GHz) 极化调控能力 极化隔离度 插入损耗 剖面 入射角稳定性 [38] 手性 PIN二极管 9.70 线-左旋圆极化转换
线-右旋圆极化转换
线极化保持≥20 dB
≥20 dB
—1.32 dB
1.32 dB
1 dB0.05λ0 — [39] 手性 PIN二极管 2.50 线-左旋圆极化转换
线-右旋圆极化转换— — 0.07λ0 — [40] 各向异性 PIN二极管 14.10~15.00 线极化保持
线-左旋圆极化转换≥10 dB ≤2 dB 0.15λ0 — [41] 各向异性 PIN二极管 14.00~16.00 线极化保持
线-左旋圆极化转换— — 0.15λ0 — [42] 各向异性 PIN二极管 2.50~3.64 线极化保持
线-右旋圆极化转换≥15 dB ≤3 dB 0.07λ0 — [43] 各向异性 PIN二极管 1.00~3.74
2.41~3.76
2.48~3.79
2.58~3.89线极化保持
线-左旋圆极化转换
线-右旋圆极化转换
线-交叉线极化转换≥10 dB ≤3 dB 0.37λ0 — [44] 各向异性 变容二极管 7.50~9.50 极化椭圆度–1至1 — — 0.25λ0 — [45] 各向异性 变容二极管 10.00 极化方位角旋转 — — 0.52λ0 — [46] 谐振腔型 PIN二极管 5.20~16.70
8.00~14.30线极化保持
线-交叉线极化转换≥15 dB ≤3 dB 0.05λ0 60° [47] 谐振腔型 PIN二极管 7.80~10.80
8.30~11.20线极化保持
线-交叉线极化转换≥10 dB ≤2 dB 0.08λ0 — [48] 谐振腔型 PIN二极管 2.39~3.21 线极化保持
线-交叉线极化转换≥20 dB ≤3 dB 0.44λ0 — [49] 谐振腔型 PIN二极管 2.76~4.24
3.31~3.56线-左旋圆极化转换
线-交叉线极化转换≥20 dB — 0.16λ0 — [50] 谐振腔型 PIN二极管 3.03~3.60 线极化方位角旋转 — ≤2 dB 0.21λ0 — 表 3 反射型电控可重构极化调控超表面总结
Table 3. Summary of reflection-type electronically controlled reconfigurable polarization modulation metasurface
文献 电控器件 工作频段(GHz) 极化调控能力 极化隔离度 插入损耗 剖面 入射角稳定性 [51] PIN二极管 2.45~3.52 线极化保持
线-交叉线极化转换— ≤2 dB 0.07λ0 — [52] PIN二极管 4.00~14.00
6.40~10.30线极化保持
线-交叉线极化转换— ≤0.1 dB
—0.03λ0 —
15°[53] PIN二极管 3.83~4.74
3.39~5.01线极化保持
线-交叉线极化转换≥10 dB ≤1 dB
—0.06λ0 85°
30°[54] PIN二极管 7.60~23.60
6.50~19.90线-左旋圆极化转换
线-交叉线极化转换≥10 dB —
≤1 dB0.12λ0 — [55] PIN二极管 5.96~15.34
6.05~14.76线-左旋圆极化转换
线-交叉线极化转换≥10 dB —
≤1 dB0.09λ0 20°
20°[56] PIN二极管 11.80~24.10
10.50~13.90/17.70~27.20线-左旋圆极化转换
线-交叉线极化转换≥10 dB —
≤3 dB0.07λ0 10°
30°[57] PIN二极管 7.40~12.00 线/圆极化保持
线/圆-交叉线/圆极化转换≥10 dB ≤1 dB 0.07λ0 30° [58] PIN二极管 3.05~3.70 线极化保持
线-左旋圆极化转换
线-右旋圆极化转换— —
≤1.5 dB
≤1.5 dB0.03λ0 — [59] PIN二极管 2.00~3.66/8.46~9.52
3.77~6.20
7.75~8.60
5.20~6.10极化保持
线-交叉线极化转换
线-左旋圆极化转换
线-右旋圆极化转换≥10 dB ≤1 dB
≤1 dB
—
—0.04λ0 15° [60] PIN二极管 9.80 线极化旋转 — — 0.07λ0 — [61] 变容二极管 4.90~8.20
3.90~7.90线-左旋圆极化转换
线-交叉线极化转换≥10 dB
≤2 dB0.08λ0 20°
30°[62] MEMS 7.00~14.00 线极化保持
线-交叉线极化转换— ≤1 dB 0.05λ0 30° [63] MEMS 8.07~10.77
7.93~12.42线-左旋圆极化转换
线-交叉线极化转换— —
≤1 dB0.08λ0 — [64] MEMS 5.7~23.8 GHz
5.6~23.5 GHz线-左旋圆极化转换
线-交叉线极化转换— —
≤1 dB0.12λ0 — 表 4 透/反射一体型电控可重构极化调控超表面总结
Table 4. Summary of integrated transmission/reflection electrically controlled reconfigurable polarization modulation metasurfaces
文献 电控器件 工作频段(GHz) 极化调控能力 插入损耗 剖面 入射角稳定性 [65] PIN二极管 2.10 透射:线-交叉线极化转换
反射:线极化保持≤1 dB 0.02λ0 — [66] PIN二极管 9.70
9.70
4.62~13.56透射:线极化保持
透射:线-交叉线极化转换
反射:线极化保持≤0.5 dB
≤0.5 dB
≤1 dB0.13λ0 — [67] PIN二极管 2.09~5.00
2.29~3.16
1.85~2.69
1.72~2.53透射:线极化保持
透射:线-左旋圆极化转换
透射:线-交叉线极化转换
反射:线极化保持≤2 dB 0.46λ0 — [68] PIN二极管 4.90~7.00 透射:线-交叉线极化转换
反射:线极化保持≤2 dB 0.10λ0 40° -
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