A novel structure for a broadband left-handed metamaterial  

作　　者：熊汉 洪劲松 金大琳 章志敏 

机构地区：[1]Institute of Applied Physics,University of Electronic Science and Technology of China

出　　处：《Chinese Physics B》2012年第9期234-238,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 61172115 and 60872029);the High-Tech Research and Development Program of China (Grant No. 2008AA01Z206);the Aeronautics Foundation of China (Grant No. 20100180003);the Fundamental Research Funds for the Central Universities of China (Grant No. ZYGX 2009J037)

摘　　要：A low absorptivity broadband negative refractive index metamaterial with a multi-gap split-ring and metallic cross （MSMC） structure is proposed and investigated numerically and experimentally in the microwave frequency range. The effective media parameters were retrieved from the numerical and experimental results, which clearly show that there exists a very wide frequency band where the permittivity and permeability are negative. The influence of the structure parameters on the magnetic response and the cut-off frequency of the negative permittivity are studied in detail. This metamaterial would have potential application in designing broadband microwave devices.A low absorptivity broadband negative refractive index metamaterial with a multi-gap split-ring and metallic cross （MSMC） structure is proposed and investigated numerically and experimentally in the microwave frequency range. The effective media parameters were retrieved from the numerical and experimental results, which clearly show that there exists a very wide frequency band where the permittivity and permeability are negative. The influence of the structure parameters on the magnetic response and the cut-off frequency of the negative permittivity are studied in detail. This metamaterial would have potential application in designing broadband microwave devices.

关 键 词：METAMATERIAL negative refractive index （NRI） BROADBAND 

分 类 号：TB34[一般工业技术—材料科学与工程]