螺旋谐振器构成的新颖左手移相单元设计  

Design of Novel Left-handed Phase-shift Cell Composed of Spiral Resonators

作　　者：逯科[1] 王光明[1] 徐彤[2] 徐海洋[1] 

机构地区：[1]空军工程大学导弹学院防空导弹微波应用实验室,陕西三原713800 [2]空军工程大学导弹学院制导雷达教研室,陕西三原713800

出　　处：《电讯技术》2011年第2期85-89,共5页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(60971118)~~

摘　　要：提出了由螺旋谐振器构成的新颖非对称非直连形式左手移相单元,目前此类左手移相单元是实现低剖面单极子天线的关键器件。利用全波电磁仿真工具,对非对称非直连单元和已经提出的对称直连单元、对称非直连单元进行了比较研究。结果表明,非对称非直连单元比对称直连单元插损特性好,而且其相位特性在很宽的频带内非常相似;上述两种单元比对称直连单元表现出更明显的左手效应。A novel unsymmetrical indirectly-connected left-handed phase shift cell composed of spiral resonators is proposed and this kind of left-handed phase-shift units are the key components to realize low-profile monopoles. With the help of full-wave simulation tool, symmetrical directly-connected cell, Symmetrical indi- rectly-connected cell and unsymmetrical indirectly-connected cell are comparatively studied. The results indicate that the insert loss character of unsymmetrical indirectly-connected cell is better than that of symmetrical indi- rectly-counected cell and the phase properties of these two units are similar in quite broad frequency band. In addition, the left-handed effect of the above - mentioned two units is more obvious than that of symmetrical di- rectly-connected cell.

关 键 词：螺旋谐振器 左手移相单元 低剖面单极子 

分 类 号：TN602[电子电信—电路与系统]