梯形接地板结构超宽带天线设计  

Design of Ultra Wide Band Antenna with Trapezoidal Ground Plate

作　　者：魏晓玉[1] 谢泽会[1] 赵红梅[1] 任景英[1] 

机构地区：[1]郑州轻工业学院,河南郑州450002

出　　处：《电视技术》2014年第1期153-155,共3页Video Engineering

基　　金：河南省科技攻关计划项目(112102210188);河南省教育厅自然科学研究计划项目(2010140017)

摘　　要：在圆形单极天线的基础上进行改进设计了一款梯形接地板结构的超宽带单极天线。根据接地板电流的分布强弱，削去矩形接地板两端对电流影响较小的三角形形状部分，构成梯形接地板。经过仿真优化实验结果表明，该天线电压驻波比VSWR〈2的阻抗带宽为3．1～17GHz，工作频段内具有全向辐射特性，且天线只有20mm×22mm×1．6m／n，结构简单，适合超宽带无线通信系统的要求。An ultra wide band monopole antenna with a trapezoidal ground plate is proposed based on the circular planar monopele antenna. The anten- na is made by removal of the two symmetric triangles of the rectangular ground plate in consideration of the current distribution. The experiment results show the antenna with a compact size equal to 20 mm × 22 mm × 1.6 mm consist of a impedance bandwidth reaches 3.1 - 17 GHz when VSWR is less than 2 and has omnidirectional radiation within the impedance bandwidth. The antenna fit the requirement of uhra-wideband wireless communication systems.

关 键 词：梯形接地板 超宽带 电压驻波比 全向辐射 

分 类 号：TN925[电子电信—通信与信息系统]