基于多开口环的宽频左手材料设计

Design of Wide Broadband Left-handed Material Based on Multi-splite Ring

本文提出一种宽频左手材料结构,其通过多开口谐振结构在不同频带实现谐振。通过理论分析,软件仿真与介质参数提取对设计结构左手特性进行验证。结果表明该结构在谐振频带具有宽频左手特性(等效磁导率μ与等效介电常数ε均小于零),左手频带为:10.3~18.35 GHz,相对带宽57.71%,单元损耗小于0.9 d B,相较于传统左手材料结构,左手频带更宽,并且结构简单易于分析和应用。

This paper presents a broadband left-handed material structure that resonance is achieved in different frequency bands through a multiple opening resonant structure. Through theoretical analysis,software simulation and media parameter extraction, the left-handedness of the design structure is verified. The results show that the structure has wide-band left-handed characteristics（equivalent permeability μ and equivalent dielectric constant ε are less than zero） in the resonance frequency band,the left-hand band is 10. 3 to 18. 35 GHz,the relative bandwidth is 57. 71%,the unit loss is less than 0.9 d B,Compared with the traditional left-handed material structure,the left-handed band is wider,and the structure is simple and easy to analyze and apply.