摘要
研制了一款超宽带印刷单极子天线,通过在接地板上开方形槽,展宽带宽的同时也改善了带内特性。再在金属贴片顶部开扇形槽,进一步在高频段展宽了频带。实测结果显示,改进后的天线-10 dB阻抗带宽为2.1~25.5 GHz,而原不加槽天线的仿真带宽为2~11.4 GHz,带宽展宽了14 GHz。仿真和实测结果显示,天线在2.5 GHz8、GHz2、5 GHz的方向图对称性良好。
The UWB（Uhra-wideband） printed planar antenna in this paper is notched in the ground plane, so that the bandwidth is expanded, and the inner band performance is improved, too. Then through notching in the top of the patch, the bandwidth is further expanded at the high frequency section. The measured result shows that the - 10 dB impedance bandwidth of the improved antenna is 2.1 - 25.5 GHz in contrast to 2 ~ 11.4 GHz of the simulated bandwidth of the initial antenna, as a resuh,the bandwidth enhances 14 GHz. The simulated and measured results show that the radiation patterns are very symmetrical at 2.5 GHz, 8 GHz and 25 GHz.
出处
《电讯技术》
北大核心
2011年第8期121-124,共4页
Telecommunication Engineering
关键词
超宽带
单极子天线
开槽
ultra-wideband （UWB）
monopole antenna
notch
