摘要
首先从理论上证明了利用微带结构实现的复合左右手传输线具有异向介质特性,然后利用复合左右手传输线构造了具有宽带特性的异向介质.同时,介绍了近几年来我们在分析、设计和研制由该种异向介质构成的微波无源器件方面的研究成果.研究表明:由于复合左右手传输线的异向介质特性,使得这些新颖的无源器件无论在插损、尺寸以及性能上都优于由传统传输线构成的同类器件的特性.
Firstly, it is theoretically iustified that the microstrip line metamaterials consisting of the composite right/left handed transmission line is of the left handed property. Then, the metamaterials possessing the characteristic of wide frequency band are constructed with the composite right/left handed transmission line. At the same time, the investigation results of the passive microwave devices composed of the metamaterials, that have been analyzed, designed and developed by our group in recent years, are introduced. The investigation results indicate that, because the left handed property of the composite right/left handed transmission line, the novel devices are superior either in insert loss, size or in performances to those consisting of the traditional microstrip lines.
基金
国家自然科学基金重点和面上项目(60531020
60371010)资助
关键词
异向介质
复合左右手传输线
左手微带天线
左手高功率移相器
左手滤波器
天线阵列复合左右手串联馈电网络
metamaterials
composite right/left handed transmission line
left-handed microstrip antenna
left-handed high power phase shifter
left-handed filter
antenna array fed network with series composite right/left handed transmission line
