超宽带Koch分形缝隙天线的陷波特性研究  

On the Frequency Notched Characteristics of Ultra-wideband Koch Fractal Slot Antenna

作　　者：吕文俊[1] 朱洪波[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003

出　　处：《南京邮电大学学报（自然科学版）》2008年第3期44-48,共5页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家自然科学基金(60572024);南京邮电大学引进人才科研启动基金(207019)资助项目

摘　　要：提出了超宽带Koch分形缝隙天线的设计方法。通过引入Koch分形,可显著缩小超宽带缝隙天线的体积,同时还可以通过调整分形缝隙的边界花样长度获得灵活的陷波功能。给出了Koch分形天线的设计过程,通过理论计算和尺度放大实验,研究了天线的陷波性能。实验与理论计算的良好吻合表明文中提出的方法是正确有效的。This paper propose a method to design a ultra-wideband （UWB） Koch fractal slot antenna. By employing Koch fractal shape wide slot, the volume of the antenna may be decreased drastically. By adjusting the length of the Koch fractal＇ s edge, flexible frequency notched function can be achieved. The designing procedure of the antenna is also presented. The antenna and its large-scaled prototypes are evaluated experimentally for their frequency notched function. The well-accordance between numerical and experimental results shows that the method proposed is correct and effective.

关 键 词：超宽带 缝隙天线 KOCH分形 陷波功能 

分 类 号：TN82[电子电信—信息与通信工程]