一种双面型宽频带的左手材料设计研究
|
摘要
针对目前左手材料普遍存在的谐振频率低、带宽窄和高损耗的问题,本文基于谐振型左手材料理论,设计了一种双面型宽频带左手材料结构。该结构将螺旋对称形金属片与十字形金属片分别放置在介质基板的两侧,形成一个左手材料单元,在2个左手材料单元顺序排列条件下,实现最佳谐振性,为了验证所设计的材料结构是否具有左手特性,采用高频仿真软件进行电磁仿真,同时采用Matlab软件与传输反射法(nicolson-ross-weir,NRW)进行计算。研究结果表明,该材料在3.37～5.87GHz范围内,具有谐振特性,满足低损耗要求;在2.5～4.8GHz范围内,介电常数和磁导率同时为负,实现了材料的左手特性。该研究具有一定的实际应用价值。
Aiming at the low resonance frequency,narrow bandwidth and high loss of the left-handed materials,this paper designs a double-sided wide-band left-hand material structure based on the resonant left-hand material theory.The structure places a spiral symmetrical metal piece and a cross-shaped metal piece on both sides of the dielectric substrate to form a left-hand material unit,and achieves optimal resonance under the condition of two left-hand material units sequentially arranged,in order to verify whether the designed material structure has left-handed characteristics,high-frequency simulation software is used for electromagnetic simulation,and Matlab software and transmission reflection method(nicolson-ross-weir,NRW)are used for calculation.The results show that the material has resonance characteristics in the range of 3.37～5.87 GHz and meets the requirements of low loss.In the range of 2.5～4.8 GHz,the dielectric constant and magnetic permeability are negative at the same time,which realizes the left-hand characteristics of the material.This research has certain practical application value.
Aiming at the low resonance frequency,narrow bandwidth and high loss of the left-handed materials,this paper designs a double-sided wide-band left-hand material structure based on the resonant left-hand material theory.The structure places a spiral symmetrical metal piece and a cross-shaped metal piece on both sides of the dielectric substrate to form a left-hand material unit,and achieves optimal resonance under the condition of two left-hand material units sequentially arranged,in order to verify whether the designed material structure has left-handed characteristics,high-frequency simulation software is used for electromagnetic simulation,and Matlab software and transmission reflection method(nicolson-ross-weir,NRW)are used for calculation.The results show that the material has resonance characteristics in the range of 3.37～5.87 GHz and meets the requirements of low loss.In the range of 2.5～4.8 GHz,the dielectric constant and magnetic permeability are negative at the same time,which realizes the left-hand characteristics of the material.This research has certain practical application value.
引文
[1]王小军,文庆珍,朱金华.左手材料的研究进展[J].材料开发与应用,2011,26(2):68-74.
[2] Veselago V G.The elect rodynamics of substances with simultaneously genative values of permittivity and permeability[J].Sov Phys Usp,1968,10(4):509-514.
[3]马中团,鲁拥华,王沛,等.左手性材料研究进展[J].物理,2004,33(7):497-502.
[4] Pendry J B,Hoiden A J,Stewart W J,et al.Youngs extremely low frequency plasms in metallic macrostructures[J].Phys Rev Lett,1996,76:4773-4776.
[5] Smith D R,Padilla W J,Vier D C,et al.Composite medium with simultaneously negative permeability and permittivity[J].Phys Rev Lett,2000,84(18):4184-4187.
[6] Ran L,Huangfu J T,Chen Y H,et al.Microwave solid-state left-handed material with a broad bandwidth and an ultralow loss[J].Physical Review.B,Condensed Matter,2004,70(7):7-15.
[7]杨晨,张洪欣,王海侠,等.十字环形左手材料单元结构设计与仿真[J].物理学报,2012,61(16):164101(1-9).
[8]杜国宏,刘昆.用于左手材料的对称开口谐振环特性研究[J].四川大学:自然科学版,2010(5):1053-1058.
[9]刘亚红,罗春荣,赵晓鹏.同时实现介电常数和磁导率为负的H型结构单元左手材料[J].物理学报,2007(10):5883-5889.
[10]徐瑞迪.基于对称环结构的左手材料单元设计及其在多频天线中的应用研究[D].厦门:厦门大学,2015.
[11] Smith D R,Veir D C,Koschny T,et al.Electromagnetic parameter retrieval from inhomogeneous metamaterials[J].Physical Review E,2005,71(3):1-4.
[12]吴俊芳,孙明昭,张淳民.左手材料的响应频段和单元尺寸关系的研究[J].物理学报,2009,58(6):3844-3847.
[13]李芷懿.非对称人工结构等效电磁参数提取[D].西安:西安电子科技大学,2015.
[14] Smith D R,Padilla W J,Vier D C,et al.Composite medium with simultaneously negative permeability and permittivity[J].Phys Rev Lett,2000,84(18):4184-4187.
[15]张效雄,王佳云,杨荣草.基于十字线与双开口环结构的双频段左手材料[J].测试技术学报,2017,5(31):455-460.
[16]孔娟.SIAD结构左手特性的研究与应用[D].南京:南京理工大学,2010.
[17]杜雷鸣,谢彦召,王绍飞.平行板传输线特性阻抗仿真计算及解析修正[J].强激光与粒束,2015,27(8):154-158.
[18]雷前召,阴国富.多层介质中平面电磁波传播特征[J].河南师范大学学报,2012,40(2):1-4.
[19]丁敏,薛晖,吴博,等.基于电磁超材料的两种等效参数提取算法的比较分析[J].物理学报,2013,62(4):044218(1-6).
[20]杨光,姜山,王国栋.一种改进的电磁参数测试算法[J].国外电子测量技术,2007(8):15-17.
[21]田步宁,杨德顺,唐家明.传输/反射法测量材料电磁参数的研究[J].电波科学学报,2001(1):57-60.
[2] Veselago V G.The elect rodynamics of substances with simultaneously genative values of permittivity and permeability[J].Sov Phys Usp,1968,10(4):509-514.
[3]马中团,鲁拥华,王沛,等.左手性材料研究进展[J].物理,2004,33(7):497-502.
[4] Pendry J B,Hoiden A J,Stewart W J,et al.Youngs extremely low frequency plasms in metallic macrostructures[J].Phys Rev Lett,1996,76:4773-4776.
[5] Smith D R,Padilla W J,Vier D C,et al.Composite medium with simultaneously negative permeability and permittivity[J].Phys Rev Lett,2000,84(18):4184-4187.
[6] Ran L,Huangfu J T,Chen Y H,et al.Microwave solid-state left-handed material with a broad bandwidth and an ultralow loss[J].Physical Review.B,Condensed Matter,2004,70(7):7-15.
[7]杨晨,张洪欣,王海侠,等.十字环形左手材料单元结构设计与仿真[J].物理学报,2012,61(16):164101(1-9).
[8]杜国宏,刘昆.用于左手材料的对称开口谐振环特性研究[J].四川大学:自然科学版,2010(5):1053-1058.
[9]刘亚红,罗春荣,赵晓鹏.同时实现介电常数和磁导率为负的H型结构单元左手材料[J].物理学报,2007(10):5883-5889.
[10]徐瑞迪.基于对称环结构的左手材料单元设计及其在多频天线中的应用研究[D].厦门:厦门大学,2015.
[11] Smith D R,Veir D C,Koschny T,et al.Electromagnetic parameter retrieval from inhomogeneous metamaterials[J].Physical Review E,2005,71(3):1-4.
[12]吴俊芳,孙明昭,张淳民.左手材料的响应频段和单元尺寸关系的研究[J].物理学报,2009,58(6):3844-3847.
[13]李芷懿.非对称人工结构等效电磁参数提取[D].西安:西安电子科技大学,2015.
[14] Smith D R,Padilla W J,Vier D C,et al.Composite medium with simultaneously negative permeability and permittivity[J].Phys Rev Lett,2000,84(18):4184-4187.
[15]张效雄,王佳云,杨荣草.基于十字线与双开口环结构的双频段左手材料[J].测试技术学报,2017,5(31):455-460.
[16]孔娟.SIAD结构左手特性的研究与应用[D].南京:南京理工大学,2010.
[17]杜雷鸣,谢彦召,王绍飞.平行板传输线特性阻抗仿真计算及解析修正[J].强激光与粒束,2015,27(8):154-158.
[18]雷前召,阴国富.多层介质中平面电磁波传播特征[J].河南师范大学学报,2012,40(2):1-4.
[19]丁敏,薛晖,吴博,等.基于电磁超材料的两种等效参数提取算法的比较分析[J].物理学报,2013,62(4):044218(1-6).
[20]杨光,姜山,王国栋.一种改进的电磁参数测试算法[J].国外电子测量技术,2007(8):15-17.
[21]田步宁,杨德顺,唐家明.传输/反射法测量材料电磁参数的研究[J].电波科学学报,2001(1):57-60.