一种新型超宽带平面单极子天线  

A Novel Ultra Broadband Planar Monopole Antenna for UHF

作　　者：朱永忠[1] 李萍[2] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,西安710071 [2]武警工程学院通信工程系,西安710086

出　　处：《电子器件》2007年第3期804-807,共4页Chinese Journal of Electron Devices

摘　　要：设计了一种结构简单的H形双面印刷超宽带单极子天线.通过采用FDTD建模和HFSS软件仿真分析发现,适当调整天线凹槽的长宽和改变馈电结构可以调整天线的中心频率与带宽.由此设计制作了这种天线,并进行实验测试.结果表明:在厚度为0.15cm的介质基片上,双面印刷的H型单极子天线,实测带宽可达53%(VSWR<2.0),中心频率处增益达2.88dB.A novel simple H-shaped printed planar antenna is designed. The analysis of finite-difference time domain method and HFSS shows the novel printed antenna may obtains favorable performance by adjusting the width of the notch properly and changing the T-shaped feeding configuration. The measurement indicates its bandwidth is greater than 53% at VSWR〈2 and 2. 88 dB can be obtained on a 0. 15 cm substrate at the center frequency. This new broadband printed antenna is easy to be integrated with MMIC, and suitable for element of array due to its simple planar configuration.

关 键 词：单极子天线 H形 超宽带 驻波比 时域有限差分法 

分 类 号：TN820[电子电信—信息与通信工程]