浏览全部资源
扫码关注微信
1.南京邮电大学 集成电路科学与工程学院, 江苏 南京 210023
2.南京邮电大学 射频集成与微组装技术国家地方联合工程实验室, 江苏 南京 210023
3.南京邮电大学 电子与光学工程学院, 江苏 南京 210023
[ "李若舟(1988—),男,湖北孝感人,博士,讲师,2016年于东南大学获得博士学位,主要从事柔性电子、微纳光子器件,表面等离激元和新型射频微波器件等方面的研究。E-mail:lirz@njupt.edu.cn" ]
[ "严静(1987—),女,江苏苏州人,博士,讲师,2016年于东南大学获得博士学位,主要从事液晶显示及液晶电光器件方面的研究。E-mail:jing.yan@njupt.edu.cn" ]
收稿日期:2022-11-19,
修回日期:2022-12-03,
纸质出版日期:2023-04-05
移动端阅览
李若舟, 吴哲元, 杨铭清, 等. 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):471-478.
LI Ruo-zhou, WU Zhe-yuan, YANG Ming-qing, et al. Liquid crystal microwave dielectric constant measurement sensor based on spoof localized surface plasmon[J]. Chinese journal of liquid crystals and displays, 2023, 38(4): 471-478.
李若舟, 吴哲元, 杨铭清, 等. 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):471-478. DOI: 10.37188/CJLCD.2022-0378.
LI Ruo-zhou, WU Zhe-yuan, YANG Ming-qing, et al. Liquid crystal microwave dielectric constant measurement sensor based on spoof localized surface plasmon[J]. Chinese journal of liquid crystals and displays, 2023, 38(4): 471-478. DOI: 10.37188/CJLCD.2022-0378.
液晶材料在微波频段具有良好的调制特性,在微波可调谐器件领域具有巨大的应用潜力。本文针对液晶材料微波介电常数的测量需求,提出了一种基于人工局域表面等离激元谐振的传感器。通过设计环形谐振器结构,在sub-6 GHz频段形成局域表面等离激元窄带谐振峰。通过给液晶施加外加电场,能够实现对液晶介电常数的调控。通过谐振频点位置的拟合,能够得到对应的液晶的介电常数大小,从而实现液晶材料在微波频段的介电常数的测量。本文研究了不同液晶层厚度、不同液晶介电常数对人工局域表面等离激元谐振频点的影响。随着液晶层厚度增加或者液晶介电常数的减小,谐振频点
f
1
和
f
2
都逐渐增大。当液晶层厚度大于或等于0.5 mm时,谐振频点
f
1
和
f
2
随介电常数的变化具有良好的线性度,且具有高灵敏度(
>
400 MHz/Δ
ε
),远大于基于目前报道的其他形式介电常数传感器。同时,本传感器结构可以在液晶层上下施加电场,从而实现在不同外加电场作用下液晶材料微波介电常数的测量,在液晶微波特性研究领域具有应用潜力。
Liquid crystal materials have good modulation characteristics in the microwave band, and have great potential for application in the field of microwave tunable devices. In this paper, a sensor based on the resonance of spoof localized surface plasmon is proposed for the demand of microwave dielectric constant measurement of liquid crystal materials. The ring resonator structure is designed to form narrow-band resonant peaks in the sub-6 GHz band with localized surface surface plasmon. By applying an applied electric field to the liquid crystals, the modulation of the liquid crystal dielectric constant can be achieved. The corresponding dielectric constant can be obtained by fitting the position of the resonant frequency points, thus realizing the measurement of the dielectric constant of the liquid crystal material in the microwave band. The effects of different liquid crystal layer thicknesses and different liquid crystal dielectric constants on the resonant frequency points of the spoof localized surface plasmon are studied. The resonant frequency points
f
1
and
f
2
increase gradually with the increases of the liquid crystal layer thickness or the decreases of the liquid crystal dielectric constant. When the thickness of liquid crystal layer is equal or greater than 0.5 mm, the resonant frequency points
f
1
and
f
2
have good linearity with the change of the liquid crystal dielectric constant. The proposed sensor has a high sensitivity (
>
400 MHz/Δ
ε
), which is much larger than that based on other forms of dielectric constant sensors reported so far. At the same time, this sensor structure can apply electric field above and below the liquid crystal layer, thus realizing the measurement of microwave dielectric constant of liquid crystal materials under the action of different applied electric fields, which has potential for application in the field of microwave characterization of liquid crystals.
YANG D K , WU S T . Fundamentals of Liquid Crystal Devices [M]. Chichester : Wiley , 2015 .
邹呈 , 高延子 , 于美娜 , 等 . 液晶/高分子复合材料及其在反式电控调光膜中的应用研究进展 [J]. 应用化学 , 2021 , 38 ( 10 ): 1213 - 1225 . doi: 10.19894/j.issn.1000-0518.210373 http://dx.doi.org/10.19894/j.issn.1000-0518.210373
ZOU C , GAO Y Z , YU M N , et al . Recent advances in liquid crystal/polymer composites and their applications in reverse-mode electrically switchable light-transmittance controllable films [J]. Chinese Journal of Applied Chemistry , 2021 , 38 ( 10 ): 1213 - 1225 . (in Chinese) . doi: 10.19894/j.issn.1000-0518.210373 http://dx.doi.org/10.19894/j.issn.1000-0518.210373
崔永杰 , 钟佳鑫 , 廖勋凡 , 等 . 液晶分子在有机太阳能电池中的应用研究进展 [J]. 应用化学 , 2021 , 38 ( 10 ): 1326 - 1339 . doi: 10.19894/j.issn.1000-0518.210359 http://dx.doi.org/10.19894/j.issn.1000-0518.210359
CUI Y J , ZHONG J X , LIAO X F , et al . Research progress of liquid crystal molecules for application in organic solar cells [J]. Chinese Journal of Applied Chemistry , 2021 , 38 ( 10 ): 1326 - 1339 . (in Chinese) . doi: 10.19894/j.issn.1000-0518.210359 http://dx.doi.org/10.19894/j.issn.1000-0518.210359
TING T L . Technology of liquid crystal based antenna [J]. Optics Express , 2019 , 27 ( 12 ): 17138 - 17153 . doi: 10.1364/oe.27.017138 http://dx.doi.org/10.1364/oe.27.017138
ZOGRAFOPOULOS D C , FERRARO A , BECCHERELLI R . Liquid-crystal high-frequency microwave technology: materials and characterization [J]. Advanced Materials Technologies , 2019 , 4 ( 2 ): 1800447 .
MAUNE H , JOST M , REESE R , et al . Microwave liquid crystal technology [J]. Crystals , 2018 , 8 ( 9 ): 355 . doi: 10.3390/cryst8090355 http://dx.doi.org/10.3390/cryst8090355
CAMLEY R , CELINSKI Z , GARBOVSKIY Y , et al . Liquid crystals for signal processing applications in the microwave and millimeter wave frequency ranges [J]. Liquid Crystals Reviews , 2018 , 6 ( 1 ): 17 - 52 . doi: 10.1080/21680396.2018.1509385 http://dx.doi.org/10.1080/21680396.2018.1509385
DUBOIS F , KRASINSKI F , SPLINGART B , et al . Large microwave birefringence liquid-crystal characterization for phase-shifter applications [J]. Japanese Journal of Applied Physics , 2008 , 47 ( 5R ): 3564 - 3567 . doi: 10.1143/jjap.47.3564 http://dx.doi.org/10.1143/jjap.47.3564
FRANKE T , GAEBLER A , PRASETIADI A E , et al . Tunable Ka-band waveguide resonators and a small band band-pass filter based on liquid crystals [C]// 44th European Microwave Conference . Rome, Italy : IEEE , 2014 : 339 - 342 . doi: 10.1109/eumc.2014.6986439 http://dx.doi.org/10.1109/eumc.2014.6986439
BILDIK S , DIETER S , FRITZSCH C , et al . Reconfigurable folded reflectarray antenna based upon liquid crystal technology [J]. IEEE Transactions on Antennas and Propagation , 2015 , 63 ( 1 ): 122 - 132 . doi: 10.1109/tap.2014.2367491 http://dx.doi.org/10.1109/tap.2014.2367491
ZHAO Y Z , HUANG C , QING A Y , et al . A frequency and pattern reconfigurable antenna array based on liquid crystal technology [J]. IEEE Photonics Journal , 2017 , 9 ( 3 ): 1 - 7 . doi: 10.1109/jphot.2017.2700042 http://dx.doi.org/10.1109/jphot.2017.2700042
KARABEY O H , GAEBLER A , STRUNCK S , et al . A 2-D electronically steered phased-array antenna with 2×2 elements in LC display technology [J]. IEEE Transactions on Microwave Theory and Techniques , 2012 , 60 ( 5 ): 1297 - 1306 . doi: 10.1109/tmtt.2012.2187919 http://dx.doi.org/10.1109/tmtt.2012.2187919
WITTEK M , FRITZSCH C , SCHROTH D . Employing liquid crystal-based smart antennas for satellite and terrestrial communication [J]. Information Display , 2021 , 37 ( 1 ): 17 - 22 . doi: 10.1002/msid.1178 http://dx.doi.org/10.1002/msid.1178
WANG Q , ZHANG X G , TIAN H W , et al . Millimeter-wave digital coding metasurfaces based on nematic liquid crystals [J]. Advanced Theory and Simulations , 2019 , 2 ( 12 ): 1900141 . doi: 10.1002/adts.201900141 http://dx.doi.org/10.1002/adts.201900141
STEVENSON R A , BILY A H , CURE D , et al . Rethinking wireless communications: advanced antenna design using LCD technology [C]// SID International Symposium: Digest of Technology Papers , 2015 , 46 ( 1 ): 827 - 830 . doi: 10.1002/sdtp.10347 http://dx.doi.org/10.1002/sdtp.10347
NARAYANAN P M . Microstrip transmission line method for broadband permittivity measurement of dielectric substrates [J]. IEEE Transactions on Microwave Theory and Techniques , 2014 , 62 ( 11 ): 2784 - 2790 . doi: 10.1109/tmtt.2014.2354595 http://dx.doi.org/10.1109/tmtt.2014.2354595
CAIJUN Z , QUANXING J , SHENHUI J . Calibration-independent and position-insensitive transmission/reflection method for permittivity measurement with one sample in coaxial line [J]. IEEE Transactions on Electromagnetic Compatibility , 2011 , 53 ( 3 ): 684 - 689 . doi: 10.1109/temc.2011.2156416 http://dx.doi.org/10.1109/temc.2011.2156416
MUÑOZ-ENANO J , VÉLEZ P , SU L J , et al . On the sensitivity of reflective-mode phase-variation sensors based on open-ended stepped-impedance transmission lines: theoretical analysis and experimental validation [J]. IEEE Transactions on Microwave Theory and Techniques , 2021 , 69 ( 1 ): 308 - 324 . doi: 10.1109/tmtt.2020.3023728 http://dx.doi.org/10.1109/tmtt.2020.3023728
ZHOU Z , MELDE K L . A comprehensive technique to determine the broadband physically consistent material characteristics of microstrip lines [J]. IEEE Transactions on Microwave Theory and Techniques , 2010 , 58 ( 1 ): 185 - 194 . doi: 10.1109/tmtt.2009.2036339 http://dx.doi.org/10.1109/tmtt.2009.2036339
ROLFES I , SCHIEK B . A novel method for the determination of the dielectric properties of liquids at microwave frequencies [C]// 2006 European Microwave Conference . Manchester : IEEE , 2006 : 399 - 402 . doi: 10.1109/eumc.2006.281358 http://dx.doi.org/10.1109/eumc.2006.281358
EBRAHIMI A , SCOTT J , GHORBANI K . Ultrahigh-sensitivity microwave sensor for microfluidic complex permittivity measurement [J]. IEEE Transactions on Microwave Theory and Techniques , 2019 , 67 ( 10 ): 4269 - 4277 . doi: 10.1109/tmtt.2019.2932737 http://dx.doi.org/10.1109/tmtt.2019.2932737
GAN H Y , ZHAO W S , HE L , et al . A CSRR-loaded planar sensor for simultaneously measuring permittivity and permeability [J]. IEEE Microwave and Wireless Components Letters , 2020 , 30 ( 2 ): 219 - 221 . doi: 10.1109/lmwc.2019.2957657 http://dx.doi.org/10.1109/lmwc.2019.2957657
马恒 , 浮新普 , 女川博義 . 液晶材料介电常数的毫米波频率特性研究 [J]. 液晶与显示 , 2009 , 24 ( 6 ): 779 - 782 . doi: 10.3969/j.issn.1007-2780.2009.06.001 http://dx.doi.org/10.3969/j.issn.1007-2780.2009.06.001
MA H , FU X P , ONNAGAWA H . Millimeter wave frequency dependency of dielectric constant in liquid crystal materials [J]. Chinese Journal of Liquid Crystals and Displays , 2009 , 24 ( 6 ): 779 - 782 . (in Chinese) . doi: 10.3969/j.issn.1007-2780.2009.06.001 http://dx.doi.org/10.3969/j.issn.1007-2780.2009.06.001
SANCHEZ J R , NOVA V , BACHILLER C , et al . Measurement of the dielectric properties of liquid crystal material for microwave applications [C]// 17th International Conference on Microwave and High Frequency Heating . Valencia, Spain : AMPERE , 2019 : 506 - 510 . doi: 10.4995/ampere2019.2019.9983 http://dx.doi.org/10.4995/ampere2019.2019.9983
JANEZIC M D , BAKER-JARVIS J . Full-wave analysis of a split-cylinder resonator for nondestructive permittivity measurements [J]. IEEE Transactions on Microwave Theory and Techniques , 1999 , 47 ( 10 ): 2014 - 2020 . doi: 10.1109/22.795077 http://dx.doi.org/10.1109/22.795077
兰庚 , 曹秋豪 , 欧阳慧琦 , 等 . 含氟三联苯类异硫氰酸酯类液晶合成与微波性能研究 [J]. 液晶与显示 , 2021 , 36 ( 9 ): 1214 - 1224 . doi: 10.37188/CJLCD.2021-0146 http://dx.doi.org/10.37188/CJLCD.2021-0146
LAN G , CAO Q H , OUYANG H Q , et al . Synthesis and microwave properties of fluorinated terphenyl isothiocyanate liquid crystals [J]. Chinese Journal of Liquid Crystals and Displays , 2021 , 36 ( 9 ): 1214 - 1224 . (in Chinese) . doi: 10.37188/CJLCD.2021-0146 http://dx.doi.org/10.37188/CJLCD.2021-0146
李诗妍 , 王婵 , 关金涛 , 等 . 侧位含氟苯乙炔类液晶化合物的微波介电性能 [J]. 液晶与显示 , 2021 , 36 ( 7 ): 913 - 920 . doi: 10.37188/CJLCD.2021-0025 http://dx.doi.org/10.37188/CJLCD.2021-0025
LI S Y , WANG C , GUAN J T , et al . Microwave dielectric properties of fluorine substituted phenylacetylene liquid crystal compounds [J]. Chinese Journal of Liquid Crystals and Displays , 2021 , 36 ( 7 ): 913 - 920 . (in Chinese) . doi: 10.37188/CJLCD.2021-0025 http://dx.doi.org/10.37188/CJLCD.2021-0025
SHEN X P , CUI T J , MARTIN-CANO D , et al . Conformal surface plasmons propagating on ultrathin and flexible films [J]. Proceedings of the National Academy of Sciences of the United States of America , 2013 , 110 ( 1 ): 40 - 45 . doi: 10.1073/pnas.1210417110 http://dx.doi.org/10.1073/pnas.1210417110
张浩驰 , 何沛航 , 牛凌云 , 等 . 人工表面等离激元超材料 [J]. 光学学报 , 2021 , 41 ( 1 ): 0124001 . doi: 10.3788/aos202141.0124001 http://dx.doi.org/10.3788/aos202141.0124001
ZHANG H C , HE P H , NIU L Y , et al . Spoof plasmonic metamaterials [J]. Acta Optica Sinica , 2013 , 110 ( 1 ): 0124001 . (in Chinese) . doi: 10.3788/aos202141.0124001 http://dx.doi.org/10.3788/aos202141.0124001
ZHOU Y J , LI Q Y , ZHAO H Z , et al . Gain-assisted active spoof plasmonic fano resonance for high-resolution sensing of glucose aqueous solutions [J]. Advanced Materials Technologies , 2020 , 5 ( 1 ): 1900767 . doi: 10.1002/admt.201900767 http://dx.doi.org/10.1002/admt.201900767
ALAHNOMI R A , ZAKARIA Z , YUSSOF Z M , et al . Review of recent microwave planar resonator-based sensors: Techniques of complex permittivity extraction, applications, open challenges and future research directions [J]. Sensors , 2021 , 21 ( 7 ): 2267 . doi: 10.3390/s21072267 http://dx.doi.org/10.3390/s21072267
SEO Y , MEMON M U , LIM S . Microfluidic eighth-mode substrate-integrated-waveguide antenna for compact ethanol chemical sensor application [J]. IEEE Transactions on Antennas and Propagation , 2016 , 64 ( 7 ): 3218 - 3222 . doi: 10.1109/tap.2016.2559581 http://dx.doi.org/10.1109/tap.2016.2559581
MEMON M U , LIM S . Microwave chemical sensor using substrate-integrated-waveguide cavity [J]. Sensors , 2016 , 16 ( 11 ): 1829 . doi: 10.3390/s16111829 http://dx.doi.org/10.3390/s16111829
KIANI S , REZAEI P , NAVAEI M . Dual-sensing and dual-frequency microwave SRR sensor for liquid samples permittivity detection [J]. Measurement , 2020 , 160 : 107805 . doi: 10.1016/j.measurement.2020.107805 http://dx.doi.org/10.1016/j.measurement.2020.107805
AWANG R A , TOVAR-LOPEZ F J , BAUM T , et al . Meta-atom microfluidic sensor for measurement of dielectric properties of liquids [J]. Journal of Applied Physics , 2017 , 121 ( 9 ): 094506 . doi: 10.1063/1.4978012 http://dx.doi.org/10.1063/1.4978012
EBRAHIMI A , WITHAYACHUMNANKUL W , AL-SARAWI S , et al . High-sensitivity metamaterial-inspired sensor for microfluidic dielectric characterization [J]. IEEE Sensors Journal , 2014 , 14 ( 5 ): 1345 - 1351 . doi: 10.1109/jsen.2013.2295312 http://dx.doi.org/10.1109/jsen.2013.2295312
ALTINTAS O , AKSOY M , AKGOL O , et al . Fluid, strain and rotation sensing applications by using metamaterial based sensor [J]. Journal of The Electrochemical Society , 2017 , 164 ( 12 ): B567 - B573 . doi: 10.1149/2.1971712jes http://dx.doi.org/10.1149/2.1971712jes
0
浏览量
290
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构