具有带阻性能的新型超宽带分集天线  

A novel CPW-fed band-notched UWB diversity antenna

作　　者：裴玺 陈进[1] 崔玉家 曹悠学 刘瑜[1] 

机构地区：[1]国家电网重庆市电力公司建设部,重庆400715

出　　处：《电子元件与材料》2014年第3期62-65,共4页Electronic Components And Materials

摘　　要：提出了一种具有陷波特性的超宽带分集天线，该平面天线采用两正交分布的端口分别对直角梯形辐射贴片进行馈电。接地板45。轴线上延伸的短路枝节和刻蚀的等腰三角形使端口隔离度大幅提高。辐射贴片上分别开有倒钧形槽从而获得无线局域网（WLAN）带阻特性。所设计的天线带宽覆盖了3．1～10．6GHz，阻带为5～6GHz。辐射方向图及信道相关系数（ECC）表明该天线能很好地满足分集系统。由于超宽带电波具有极强的穿透性，该天线可应用于室内和地下精确定位系统中。A novel pattern diversity antenna for ultra-wideband （UWB） application with band-notched characteristics was presented. The antenna built on a printed circuit board （PCB） consisted of two right-angled trapezoid radiation patches with two orthogonal feeding ports. High isolation was achieved by placing a short strip at 45 ° axis and etching an isosceles triangle on the ground plane. To achieve a notched WLAN band, two inverse hook slots were etched on the radiators respectively. The measured results show that the proposed antenna meets a bandwidth from 3.1 GHz to 10.6 GHz with the notched band of 5-6 GHz. Radiation patterns and envelope correlation coefficient （ECC） denote that the proposed antenna is meeting, for the application of antenna diversity systems. Since ultra-wideband electric wave has strong penetrating ability, the antenna can be used indoors and underground precise positioning systems.

关 键 词：分集天线 超宽带 WLAN 带阻 MIMO(多输入多输出技术) 仿真 

分 类 号：TM277[一般工业技术—材料科学与工程]