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.
出处
《电讯技术》
北大核心
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)~~
关键词
螺旋谐振器
左手移相单元
低剖面单极子
spiral resonator
left-handed phase-shift cell
low-profile monopole
