一种新型平面超宽带天线的设计  

Design of a Novel Planar Ultra-Wideband Antenna

作　　者：赵红梅[1] 田向[1] 路立平[1] 

机构地区：[1]郑州轻工业学院电气信息工程学院,郑州450002

出　　处：《电信科学》2011年第8期74-78,共5页Telecommunications Science

基　　金：河南省科技攻关项目(No.112102210188);河南省教育厅自然科学基金研究计划资助项目(No.2010B140017)

摘　　要：提出了一种微带线馈电的新型平面超宽带单极天线。该天线由带有弧边的金属贴片与开槽接地板构成,通过等腰梯形与圆弧形相结合的方式对接地板进行开槽,将其等分为相互耦合的两部分,起到了阻抗匹配与拓宽带宽的效果。仿真结果表明反射损耗在-10 dB以下的频率覆盖范围为3～11.8 GHz,并且在3.4～11.2 GHz频带驻波比在1.5以下,具有良好的全向辐射特性。该天线结构简单,体积小,适合在UWB通信中应用。A microstrip-fed novel planar ultra-wideband monopole antenna with a metal patch of arc side and a notched ground plate is proposed.A notch of semicircle unite isosceles trapezoid structure divided the ground into two coupled parts,the antenna impedance matching and bandwidth have been enhanced.The simulation results show that return loss-10 dB bandwidth covers a frequency range between 3 GHz and 11.8 GHz.And the frequency range that VSWR1.5 is between 3.4 GHz and 11.2 GHz,with good omni-directional radiation performance.This type of antenna is simple in structure,small in size,suitable for UWB communications.

关 键 词：微带线馈电 平面超宽带单极天线 等腰梯形 圆弧 开槽 

分 类 号：TN822.8[电子电信—信息与通信工程]