具有独立电磁响应的三角形人工电磁媒质  

Triangular Metamaterials with Distinct Electric and Magnetic Responses

作　　者：朱诚[1] 梁昌洪[1] 李龙[1] 党晓杰[1] 苏子剑[1] 陈曦[1] 

机构地区：[1]西安电子科技大学天线与微波技术国防重点实验室,西安710071

出　　处：《西安交通大学学报》2011年第2期87-91,共5页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(60801040;60601028);教育部新世纪优秀人才支持计划资助项目(NECT-90-0631);中央高校基本科研业务费专项资金资助项目(74104952)

摘　　要：提出了一种同时具有电磁模式响应的人工电磁媒质的综合构成(SC)方法.在介质基板上单面刻蚀的三角形金属开口对环只具有磁响应,即只具有负的磁导率,在介质基板上单面刻蚀的金属线阵列只具有电响应,即只具有负的介电常数,SC方法通过将金属线设计在开口环的中部,将以上两种结构连接起来,从而构成同时具有电磁响应的三角形电磁谐振(TER)单元结构,并通过将TER排成阵列构成新型人工电磁媒质.理论仿真与实验测量结果表明,与传统的金属环加线结构相比,TER单元具有电响应与磁响应的双阻带特性,并且由其构成的双负媒质的左手传输通带带宽比环加线结构的带宽扩展了217%.A synthesis constitution （SC） method ot metamaterials which and a magnetic response is proposed. The metallic triangular open loop resonators etched on the dielectric board have the magnetic response, i. e. , the negative permeability; and the metallic wire arrays etched on the dielectric board have the electric response, i. e. , the negative permittivity. Through locating the wire in the middle part of the loop and combining the two structures mentioned above, the SC method constitutes the triangular electromagnetic resonator （TER） which simultaneously has the magnetic and the electric responses and composes the novel meta- materials in the TER array form. Both theoretical simulation and experiment measurement prove that compared with the conventional split ring resonator （SRR） and wire structure, TER have the dual stopbands property which corresponds to the electric and magnetic responses. Moreover, the left-handed passband of the double negative metamaterial composed of TER-wire is 217% wider than that of the conventional SRR-wire design.

关 键 词：三角形电磁谐振单元 电模式响应 磁模式响应 双负媒质 

分 类 号：TM15[电气工程—电工理论与新技术]