在矩形贴片天线的基础上进行改进设计出一种新型的超宽带印刷天线,该天线由八边形的贴片和一个具有凹形槽的金属接地板组成,使天线得到了良好的超宽带阻抗匹配特性。通过数值仿真和实验测量,该结构的印刷天线在3 GHz-11 GHz频段内驻波比小于2,覆盖了超宽带天线所要求的工作频段,在H面具有良好的全向性辐射,为室内短程超宽带通信系统提供了良好的前端部件。

A novel UWB printed antenna is proposed by modified the rectangular patch antenna.The proposed antenna consist of an octagonal patch and a ground plate with notche structure,which improved the antenna's impedance matching.Experimental results show that the voltage standing wave ratio is less than 2 in the band of 3 GHz-11 GHz,which cover the work band requested by the UWB antennas.The antenna has a good omni-directional radiation characteristic in the H plane,which can be a good choice for indoor short dist...