摘要
本文提出了一种具有阻带特性的超宽带（UWB）差分天线.通过在超宽带天线的接地板上增加两个对称的C形金属带（TSCSCS）,实现超宽带的阻带特性,通过调整TSCSCS的长度可以调节阻带的中心频率,同时,TSCSCS也提高了天线在高频段的增益.天线的测量结果表明,天线的带宽为3.25-10.8GHz,阻带为5.9-7.25 GHz.在整个工作频带内,天线的辐射方向图较稳定且有较高的增益,最高增益达5.53dBi.
In this paper,a Ultra-Wideband Differential antenna with band-notch characteristics is proposed.First,two symmetrical C-shaped conductive strips（TSCSCS）in the ground plane are added to UWB ground earth to generate a notch band for the UWB antenna.The centre frequency of notch band can be adjusted by changing the length of TSCSCS.Also,the TSCSCS improves the gain in higher band.The measured results show that the proposed antenna exhibits a wider impedance bandwidth from3.25 GHz to 10.8GHz with the good rejection band and stop band was in 5.9-7.25 GHz.Furthermore,in the whole operating band,the antenna presents a stable radiation pattern and higher gain.The maximum gain can reach 5.53 dBi.
出处
《测试技术学报》
2015年第6期490-495,共6页
Journal of Test and Measurement Technology
基金
国家自然科学基金资助项目(61271160
61172045)
山西省回国留学人员资助项目(2012-014)
教育部高校博士点基金资助项目(20121401110009)
山西省青年科技基金资助项目(2014021021-1)
关键词
超宽带
差分
陷波
C形金属带
高增益
UWB
differentially-driven
band-notch
C-shaped conductive strips
higher gain
