一种新型的η形左手材料设计
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摘要
为解决传统的左手材料频带宽度低的问题,提出了一种新型的左手材料结构,该结构由介质基板和2个蚀刻在基板表面的不对称η形金属条组成。对结构采用HFSS进行了仿真,仿真结果表明,在电磁波平行入射单元结构平面时,新型结构在6.15～7.65 GHz和14.7～14.8 GHz表现出左手特性,总左手频带宽度达到了1.6 GHz。相较于传统的左手材料,该设计具备更宽的左手频带,对于研究宽带左手材料的设计具有参考价值。
To solve the low bandwidth problem of the traditional left-handed materials(LHMs),this paper presents a novelη-shaped structure of LHMs.This structure consists of a dielectric substrate and two asymmetrical η-shaped metals etched on the substrate surface.The structure is simulated by HFSS,the results show when electromagnetic wave incidents unit structure in the parallel way,the new structure demonstrates left hand features in 6.15～7.65 GHz and 14.7～14.8 GHz,and the total left hand bandwidth is 1.6 GHz,Compared with the traditional left-handed material,it has a wider band and has a good reference value for the research on the design of wideband left-handed materials.
To solve the low bandwidth problem of the traditional left-handed materials(LHMs),this paper presents a novelη-shaped structure of LHMs.This structure consists of a dielectric substrate and two asymmetrical η-shaped metals etched on the substrate surface.The structure is simulated by HFSS,the results show when electromagnetic wave incidents unit structure in the parallel way,the new structure demonstrates left hand features in 6.15～7.65 GHz and 14.7～14.8 GHz,and the total left hand bandwidth is 1.6 GHz,Compared with the traditional left-handed material,it has a wider band and has a good reference value for the research on the design of wideband left-handed materials.
引文
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[6]张松,屈绍波,马华,等.基于平行金属条的左手结构设计与仿真研究[J].物理学报,2009,58(6):3961-3965.
[7]杨晨,张洪欣,王海侠,等.十字环型左手材料单元结构设计与仿真[J].物理学报,2012,61(16):177-185.
[8]杨怀,王春华,郭小蓉.基于正六边形多开口的新型双频带左手材料[J].物理学报,2014,63(1):014103-1-014103-7.
[9]王甲富,屈绍波,徐卓,等.磁谐振和电谐振结构构成的左手材料设计[J].物理学报,2008(8):5015-5019.
[10]董怀景,耿友林.基于双十字架型宽带低耗小单元左手材料的设计与实验验证[J].物理学报,2015,64(2):101-105.
[11]张东科,张冶文,赫丽,等.利用集总L-C元件构造的一维metamaterials特性的实验研究[J].物理学报,2005(2):768-772.
[12]白冬萍,张洁婷,邓晖.E型左手材料[J].微波学报,2012,28(2):71-74.
[13]赵伟,赵晓鹏.左手材料的研究进展[J].材料导报,2006,20(2):26-28.
[14]杨一鸣,屈绍波,王甲富,等.由同时具有磁谐振和电谐振结构组成的左手材料[J].物理学报,2009,58(2):1031-1035.
[15]刘亚红,宋娟,罗春荣,等.垂直入射条件下厚金属环结构的负磁导率与左手材料行为[J].物理学报,2008(2):934-939.
[16]田子建,陈文超,樊京.基于双Σ形金属条的双向左手材料[J].物理学报,2013,62(7):215-219.
[2]PENDRY J B,HOLDEN A J.Extremely Low Frequency Plasmons in Metallic Mesostructures[J].Phys.Rev.Lett,1996,76:4773-4776.
[3]PENDRY J B,HOLDEN A J.Magnetism from Conductors and Enhanced Non-linear Phenomena[J].IEEE Trans.Microwave Theory Tech,1999,47(11):2075-2084.
[4]SMITH D R,PADILLA W J.Composite Medium with Simultaneously Negative Permeability and Permittivity[J].Phys.Rev.Lett,2000,84:4184-4187.
[5]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,2007,56(10):5883-5889.
[6]张松,屈绍波,马华,等.基于平行金属条的左手结构设计与仿真研究[J].物理学报,2009,58(6):3961-3965.
[7]杨晨,张洪欣,王海侠,等.十字环型左手材料单元结构设计与仿真[J].物理学报,2012,61(16):177-185.
[8]杨怀,王春华,郭小蓉.基于正六边形多开口的新型双频带左手材料[J].物理学报,2014,63(1):014103-1-014103-7.
[9]王甲富,屈绍波,徐卓,等.磁谐振和电谐振结构构成的左手材料设计[J].物理学报,2008(8):5015-5019.
[10]董怀景,耿友林.基于双十字架型宽带低耗小单元左手材料的设计与实验验证[J].物理学报,2015,64(2):101-105.
[11]张东科,张冶文,赫丽,等.利用集总L-C元件构造的一维metamaterials特性的实验研究[J].物理学报,2005(2):768-772.
[12]白冬萍,张洁婷,邓晖.E型左手材料[J].微波学报,2012,28(2):71-74.
[13]赵伟,赵晓鹏.左手材料的研究进展[J].材料导报,2006,20(2):26-28.
[14]杨一鸣,屈绍波,王甲富,等.由同时具有磁谐振和电谐振结构组成的左手材料[J].物理学报,2009,58(2):1031-1035.
[15]刘亚红,宋娟,罗春荣,等.垂直入射条件下厚金属环结构的负磁导率与左手材料行为[J].物理学报,2008(2):934-939.
[16]田子建,陈文超,樊京.基于双Σ形金属条的双向左手材料[J].物理学报,2013,62(7):215-219.