摘要
提出了一种新颖的小型平面超宽带天线。该天线由微带槽天线的基本结构变形而来,为获得超宽带的频率特性,设计时馈电微带采用了圆弧形调谐枝节,金属底板的开槽设计成对称多边形之后通过数值计算获得最佳的天线几何尺寸。通过HFSS仿真和测试设计了一种频率覆盖3.1～10.6 GHz的超宽带UWB天线,其对包含在超宽带频段范围内的民用频率范围有一定的滤除作用,结构简单并且驻波特性良好,方向图具有准全向性。
One novel compact planar antenna for Ultra-wideband（UWB） applications is proposed in this paper.Similar to conventional microstrip slot antennas,a circular arc shape is employed to achieve ultra-wideband characteristics.A symmetric polygonal wide slot is etched on metallic baseplate of the antenna.Through HFSS simulation and experiment,an Ultra-Wideband antenna operating within 3.1～10.6 GHz is designed.This antenna,simple in structure,is of good VSWR and omnidirectional uniformity performance,and has a good filtering-off of the civil frequency in the ultra wideband frequency range.
出处
《通信技术》
2012年第2期45-48,共4页
Communications Technology
关键词
超宽带
超宽带天线
微带天线
小型平面天线
UWB
ultra-wideband antennas
microstrip antennas
compact planar antenna
