液晶与显示, 2023, 38 (4): 471, 网络出版: 2023-04-25
基于人工局域表面等离激元的液晶微波介电常数测量传感器
Liquid crystal microwave dielectric constant measurement sensor based on spoof localized surface plasmon
图 & 表
图 1. (a)传感器结构示意图;(b)环形谐振器图案示意图;(c)馈线示意图。
Fig. 1. (a)Schematic diagram of the sensor structure;(b)Schematic diagram of the ring resonators pattern;(c)Schematic diagram of the feedline.
图 2. (a)器件回波损耗S11仿真结果;(b)谐振频率为谐振频点时微波信号的电场分布情况。
Fig. 2. (a)Simulation result of S11 of the device;(b)Electric field distributions of the microwave signal at the resonance frequency points.
图 3. 液晶层厚度对器件回波损耗S11的影响。(a)谐振峰f1;(b)谐振峰f2。
Fig. 3. Effect of the liquid crystal layer thickness on the S11 at the resonance frequencies.(a)f1;(b)f2.
图 4. 液晶介电常数对器件回波损耗S11的影响。(a)谐振峰f1;(b)谐振峰f2。
Fig. 4. Effect of the liquid crystal dielectric constant on the S11 at different resonance frequencies.(a)f1;(b)f2.
表 1不同液晶层厚度的谐振频点f1和f2的灵敏度
Table1. Sensitivities of resonant frequency points f1 and f2 for different liquid crystal layer thickness
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表 2不同结构的介电常数传感器的灵敏度对比
Table2. Comparison of the sensitivity of different structures of dielectric constant sensors
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李若舟, 吴哲元, 杨铭清, 屈科, 于映, 严静. 基于人工局域表面等离激元的液晶微波介电常数测量传感器[J]. 液晶与显示, 2023, 38(4): 471. Ruo-zhou LI, Zhe-yuan WU, Ming-qing YANG, Ke QU, Ying YU, Jing YAN. Liquid crystal microwave dielectric constant measurement sensor based on spoof localized surface plasmon[J]. Chinese Journal of Liquid Crystals and Displays, 2023, 38(4): 471.