摘要
提出了一种基于带状线结构的探针耦合馈电的微带贴片天线。天线工作在X波段,贴片形状为正方形,宽度为9.3mm;馈线部分经由微带线转带状线结构后弯折,上部形成L型探针的结构。在X波段VSWR<2的带宽约为16.30%。在垂直方向的增益约为8.78dB,交叉极化比约为33.20dB。在这个天线的基础上设计了类似结构的PIFA天线,对天线带宽提升到19.1%的同时,使得贴片垂直方向的交叉极化比约为45.3dB,与之前提出的天线相比该项指标提升超过了10dB。在实际应用方面,这种天线由于极化隔离度较好,则不容易受到其他天线的干扰,具有一定的应用价值。
A microstrip patch antenna fed by a stripline probe is proposed.The antenna works in X-band,and the patch is square in shape with a width of 9.3mm;the feeder is bent through the microstrip line to stripline structure,and the upper part forms an L-shaped probe structure.The bandwidth of VSWR<2in X-band is about 16.30%,the gain in vertical direction is about 8.78dB,and the cross polarization ratio is about 33.20dB.On the basis of this antenna,a PIFA antenna with similar structure is designed.The antenna bandwidth is increased to 19.1%,and the vertical cross polarization ratio of the patch is about 45.3dB,which is increased by more than 10dB.In practical application,this kind of antenna is not easy to be interfered by other antennas because of its good polarization isolation.
作者
陈蓬旭
李建新
Chen Pengxu;Li Jianxin(Nanjing Research Institute of Electronic Technology,Nanjing 210039,China)
出处
《电子测量技术》
北大核心
2021年第11期28-32,共5页
Electronic Measurement Technology
关键词
宽带微带贴片天线
探针耦合
交叉极化比
boardband microstrip patch antenna
probe coupling
cross polarization ratio
