左手结构在微带天线馈电设计中的应用

Left-Handed-Material(LHM)'s Application in the Feeding-Line Design of Microstrip Antenna

左手材料是一种介电常数与磁导率同时为负值的电磁材料,自2001年其第一次由人工实现后,有关领域对其制备与应用进行了深入的研究。在微带天线领域,可以利用左手传输线结构的特殊性质,将其应用在微带天线馈电设计中,可以在原有微带天线系统上取得一些较为显著的特性改善,本文对这一问题进行了系统的研究,得到了有关研究结果,为微带天线馈电设计提供了一定的参考。

Left-handed material(LHM)is a kind of electromagnetic material with both negative permittivity ε and permeability μ.It has been studied much in relative field,since it was first prepared on microwave band in 2001.The microstrip antenna with LHTL structure as the feeding line is investigated systematically,and some unnormal characteristics are found.The research achievements will provide some reference for the microstrip antenna design.