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设计了一种具有双阻带的超宽带天线。该天线由一个梯形的辐射单元和一个开有矩形槽的地板构成。并且通过在地板上开L型和U型缝隙,实现双阻带特性。该结果表明,天线工作带宽(VSWR<2)为8.6 GHz(2.9～11.5 GHz),覆盖了UWB频率范围,在3.2～3.9 GHz和5～5.9 GHz处形成了两个阻带,同时,这种天线在整个工作频率范围内有良好的辐射方向特性。
An ultra-wide band antenna with double stop band is designed. The antenna consists of a trapezoidal radiating element and a floor with rectangular slots. And by opening the floor L-shaped and U-shaped gap, to achieve double-stop band characteristics. The results show that the antenna operating bandwidth (VSWR <2) is 8.6 GHz (2.9 to 11.5 GHz), covering the UWB frequency range, forming two stopbands at 3.2 to 3.9 GHz and 5 to 5.9 GHz, and at the same time this The antenna has good radiation direction characteristics over the entire operating frequency range.