摘要
提出一种新型的具有双陷波特性的印刷超宽带单极子天线.通过Y型结构馈电,采用辐射贴片切角和弧形地等手段来拓宽天线带宽,刻蚀缝隙来产生陷波特性,并通过调整缝隙的长度和位置来改变陷波频率.用26.4mm×25mm的FR4板制成实物,使用安捷伦矢量网络分析仪E8363B测试.测试结果表明,天线在3~16.9GHz频段内的驻波比小于2,在3.3~4.0GHz和4.8~6.0GHz频段内产生陷波.最后,仿真和实测数据表明,该天线具有结构简单、制造容易、对称性好、带宽大等优点.
This paper presents a new printed ultra-wideband（UWB）monopole antenna with band-notched characteristics.The antenna is fed by arc shaped Y structure,which is etched on an FR4 substrate with the size of 26.4 mm＊25 mm.To broaden the bandwidth by the way of radiation patch cutting angle and arc treatment on the ground.The band-notched characteristic implemented by etching slots,and the bandnotched frequency is adjustable with the total length of the slots.We test the antenna with an Agilent vector network analyzer E8363 B.The result shows that the voltage standing wave ratio（VSWR）is less than 2in the3.0GHz and 16.9GHz range.The band-notched characteristic can be observed in the range of 3.3to 4.0GHz and 4.8to 6.0GHz.The simulation and experimental results show that the antenna has the advantages of simple structure,easy manufacture,good symmetry and wide bandwidth.
关键词
陷波特性
辐射模式
单极性天线
高频干扰
band-notched characteristics
radiation patterns
monopole antenna
radio frequency interference
