【摘要】 提出了一种新型超宽带平面单极子天线。该天线由一个倒置的月牙形金属贴片和一个槽口金属接地板构成,采用微带线对其进行馈电。通过数值仿真和实验测量,该平面结构的单极天线具有超宽带性能,实测天线的-10dB回波损耗的频率覆盖范围为3.2～1.8GHz,相对带宽达115%,阻抗带宽达到3.6倍频。且该天线体积小、结构简单、加工简便,适合应用于短程超宽带通信系统。更多还原

【Abstract】 A novel ultra-wide band(UWB)planar monopole antenna with a inverted crescent metal patch and a notch metal ground plate is proposed.The proposed planar monopole antenna has an ultra-wide band, and is small in size and simple in structure, thus is easy to fabricate. Its measured -10dB return loss bandwidth covers a frequency range between 3.2 GHz and 1 1.8 GHz. In other words ,the relative bandwidth is 115% and the ratio impedance bandwidth reaches 3.6:1. This type of antenna is suitable for short-distance UWB communications.更多还原