加载矩形贴片的圆形缝隙超宽带微带天线  

Circular Slot UWB Antenna with Rectangular Patch

作　　者：黄斌[1] 徐英欣[1] 

机构地区：[1]桂林空军学院,广西桂林541003

出　　处：《现代雷达》2009年第9期67-69,共3页Modern Radar

摘　　要：提出了一种新型的加载矩形贴片的平面印制圆形缝隙小型超宽带微带天线,该天线类似一般的圆形缝隙微带天线,但在圆形缝隙中间加载了一个矩形贴片,从而使得天线在获得超宽带特性的同时又保持了很小的物理尺寸。实验结果表明,该天线的阻抗带宽为2.4 GHz^12 GHz,达到了5倍频程,同时自身物理尺寸只有35 mm×35 mm,非常适合应用于目前的超宽带无线通信系统。A novel compact planar circular slot UWB antenna with rectangular patch is proposed. The antenna is similar in configuration to a conventional planar circular slot microstrip antenna, but there is a rectangular patch in the middle of the circular slot. By this way, the antenna would achieve uhra-wideband characteristics and very small size. From the experiment results, the impedance bandwidth of the antenna covers a frequency range betweem 2.4 GHz to 12 GHz, which means the impedance bandwidth ratio reachs 5 ： 1. Moreover, the physical size of the antenna is only 35 mm × 35 mm. Having uhra-wideband characteristics and compact and planar structure, the antenna is suitable for UWB communications.

关 键 词：矩形贴片 超宽带 圆形缝隙 小尺寸 

分 类 号：TN822[电子电信—信息与通信工程]