基于双U形结构的零折射率超材料

doi:10.3969/j.issn.1000-1565.2016.04.006

河北大学学报(自然科学版) ›› 2016, Vol. 36 ›› Issue (4): 362-368.DOI: 10.3969/j.issn.1000-1565.2016.04.006

基于双U形结构的零折射率超材料

郭亮¹,黄晓俊^1,2,杨河林²

收稿日期:2015-08-26 出版日期:2016-07-25 发布日期:2016-07-25
作者简介:郭亮(1971—),男,河南滑县人,喀什大学副教授,主要从事电磁场理论方向研究. E-mail:guol-ks@163.com
基金资助:
国家自然科学基金资助项目(41474117);喀什大学重点科研资助项目(142496)

Zero-index metamaterial based on double U-shaped structure

GUO Liang¹,HUANG Xiaojun^1,2,YANG Helin²

1.College of Physics and Electrical Engineering, Kashgar University, Kashgar 844006, China; 2.College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China

Received:2015-08-26 Online:2016-07-25 Published:2016-07-25

摘要/Abstract

摘要： 在介质基板刻蚀的金属线和金属化过孔组成双U形结构模型,仿真计算及电磁参数反演结果表明,当电磁波垂直入射时,该结构在频率f=7.63 GHz附近等效介电常数和等效磁导率实部同时接近零,从而得到了折射率为零的超材料,实验测试与仿真结果基本一致.同时,为了实现对零折射率响应频点的调节,分析了单元结构的金属过孔间距及U形结构脚长的变化对零折射率特性的影响,发现改变单元结构参数可改变零折射率响应频点.这种可调双U形零折射率超材料单元结构简单,可应用于微波器件等领域.

关键词: 零折射率, 谐振频率, 电磁参数, 超材料

Abstract: A structure of zero-index metamaterial composed of two anti-symmetrical U-shaped metal via holes and strip wires is proposed.The retrieved results indicate that the effective permittivity and permeability of the proposed structure is close to 0 at the frequency of 7.63 GHz when normal linearly polarized wave is incident directly,and the experimental results coincide with the simulation results.At the same time,by changing the via holes spacing and the feet length of U-shaped metal,we analyze the characteristics of the zero refractive index to study the adjustment of the frequency responses of zero refractive index point.We find that the response frequency of the zero refractive index will be changed by adjusting the geometric parameters of unit cell.The adjustable U-shaped zero-index material is simple and can be easily fabricated which can be utilized conveniently in the fields of microwave devices.

Key words: zero-index, resonant frequency, electromagnetic parameters, metamaterials

中图分类号:

O441.6

郭亮,黄晓俊,杨河林. 基于双U形结构的零折射率超材料[J]. 河北大学学报(自然科学版), 2016, 36(4): 362-368.

GUO Liang,HUANG Xiaojun,YANG Helin. Zero-index metamaterial based on double U-shaped structure[J]. Journal of Hebei University (Natural Science Edition), 2016, 36(4): 362-368.

参考文献

[1] SHELBY R A,SMITH D R,SCHULTZ S.Experimental verification of a negative index of refraction[J].Science,2001,292(5514):77-79.DOI:10.1126/science.1058847.
[2] KWON D-H,LI L,BOSSARD J A,BRAY M G,et al.Zero index metamaterials with checkerboard structure[J].Electronics Letters,2007,43(6):9-10.DOI:10.1049/el:20070197.
[3] ENOCH S,TAYEB G,SABOUROUX P,et al.A metamaterial for directive emission[J].Physical Review Letters,2002,89(21):1662-1666.DOI:10.1103/PhysRevLett.89.213902.
[4] ZIOLKOWSKI R W.Propagation in and scattering from a matched metamaterial having a zero index of refraction[J].Physics Review E,2004,70(4):046608.DOI:10.1103/PhysRevE.70.046608.
[5] EDWARDS B,ALU A,E.YOUNG M,et al.Experimental verification of epsilon-near-zero metamaterial coupling and energy squeezing using a microwave waveguide[J].Physical Review Letters,2008,100(3):033903.DOI:10.1103/PhysRevLett.100.033903.
[6] SILVEIRINHA M,ENGHETA N.Design of matched zero-index metamaterials using nonmagnetic inclusions in epsilon-near-zero media[J].Physics Review B,2007,75(7):794-802.DOI:10.1103/PhysRevB.75.075119.
[7] SOEMPHOL C,SONSILPHONG A,WONGKASEM N.Metamaterials with near-zero refractive index produced using fishnet structures[J].Journal of Optics,2014,16(1):100-103.DOI:10.1088/2040-8978/16/1/015104
[8] 林海笑,俞昕宁,刘士阳.基于零折射磁性特异电磁介质的波前调控[J].物理学报,2015,64(3):034203.DOI:10.7498/aps.64.034203. LIN H X,YU X N,LIU S Y.Manipulation of electromagnetic wavefront based on zero index magnetic metamaterial[J].Acta Phys Sin,2015,64(3):034203.DOI:10.7498/aps.64.034203.
[9] 苏妍妍,龚伯仪,赵晓鹏.基于双负介质结构单元的零折射率超材料[J].物理学报,2012,61(8):084102.DOI:10.7498/aps.61.084102. SU Y Y,GONG B Y,ZHAO X P.Zero-index metamaterial based on double-negative structure[J].Acta Phys Sin,2012,61(8):084102.DOI:10.7498/aps.61.084102.
[10] CIATTONI A,MARINELLI R,RIZZA C,et al.Epsilon-Near-zero materials in the near-infrared[J].Applied Physics B,2013,110(1):23-26.DOI:10.1007/s00340-012-5245-9.
[11] CHENG Q,LIU R,HUANG D,et al.Circuit verification of tunneling effect in zero permittivity medium[J].Applied Physics Letters,2007,91(23):234105.DOI:10.1063/1.2822444.
[12] LIU Y H,GUO X J,GU S,et al.Zero index metamaterial for designing high-gain patch antenna[J].International Journal of Antennas and Propagation,2013,12(11):1098-1101.DOI:10.1155/2013/215681.
[13] 蔡通,王光明,梁建刚.基于零折射超材料的双频高增益微带天线[J].微波学报,2014,30(4):40-44. CAI T,WANG G M,LIANG J G.A novel dual-band high-gain and high-directivity microstrip patch antenna based on zero-index metamaterial[J].Journal of Microwaves,2014,30(4):40-44.
[14] KIM H,SEO C.Highly efficient wireless power transfer using metamaterial slab with zero refractive property[J].Electronics Letters,2014,50(16):1158 - 1160.DOI:10.1049/el.2014.1596.
[15] ZHANG F,HOUZET G,LHEURETTE E,et al.Negative-zero-positive metamaterial with omega-type metal inclusions[J].Journal of Applied Physics,2008,103(8):084312.DOI:10.1063/1.2910831.
[16] GREEN H E.A simplified derivation of the capacitance of a two-wire transmission line[J].IEEE Trans on Microwave Theory and Techniques,1999,47(3):365-366.DOI:10.1109/22.750243.
[17] CHEN H S,RAN L X,HUANGFU J T,et al.Left-handed materials composed of only S-shaped resonators[J].Physics Review E,2004,70(5):057605.DOI:10.1103/PhysRevE.70.057605.
[18] SMITH D R,VIER D C,KOSCHNY TH,et al.Electromagnetic parameter retrieval from inhomogeneous metamaterials[J].Physics Review E,2005,71(3):142-154.DOI:10.1103/PhysRevE.71.036617.

基于双U形结构的零折射率超材料

Zero-index metamaterial based on double U-shaped structure

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