摘要
本文提出了一种新型的超宽带微带阵列天线,天线由4个按H面排列的单元天线组成,天线单元是加载矩形贴片的平面印制圆形缝隙微带天线,该天线单元具有小尺寸的同时还拥有很大的带宽。整个天线由一分四的威尔金森功分器进行馈电。实验结果表明,该天线的阻抗带宽从3.1GHz到12.4GHz,达到了4倍频程,覆盖了整个UWB频带,同时,天线还是双向辐射,具有平面结构小尺寸的特点,适合应用于目前的超宽带无线通信系统。
A novel 1×4 planar UWB antenna array is proposed. The utilized single element is a compact planar circular slot antenna with rectangular patch which has demonstrated ultra-wideband operation characteristics. The feeding network is a 1 to 4 wilkinson power divider. Consequently, such a design is with low fabrication and assembly cost and compact size. The bandwidth of this ultra-wideband antenna array is from 3.1 GHz to 12.4 GHz and the radiation pattern is bidirectional. The performance of the antenna array is investigated both numerically and experimentally.
出处
《电信科学》
北大核心
2010年第5期96-99,共4页
Telecommunications Science
基金
国家重点基础研究发展规划资助项目(No.2007CB310605)
国家自然科学基金资助项目(No.60496318)
关键词
超宽带
阵列天线
圆形缝隙
小尺寸
UWB
antenna array
circular slot antenna
compact structure
