一种三陷波超宽带天线研究与设计  

Research and design of a UWB antenna with triple-band notched characteristic

作　　者：宋威 Song Wei(College of Electronic Information,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学电子信息学院,浙江杭州310018

出　　处：《无线互联科技》2018年第22期1-2,共2页Wireless Internet Technology

摘　　要：文章提出了一种小尺寸具有三陷波特性的超宽带天线。所设计天线的基本结构有50Ω馈电线,对称梯形加矩形辐射贴片和凹字形地板。天线的尺寸为28 mm×24 mm×1.524 mm。HFSS仿真结果表明:该天线在3.1～12 GHz频段内回波损耗小于﹣10 dB,电压驻波比小于2,在3.3～3.8 GHz,5～6.1 Hz,7.9～8.8 GHz 3个频段内具有陷波特性,分别有效抑制了WiMAX系统、WLAN系统和ITU对于UWB系统的干扰,且具有良好的辐射方向特性。A novel and small triple-band notched UWB antenna property is proposed.The basic structure of the antenna designed by the50Ωmicrostrip,a rectangular patch with a symmetrical trapezoidal at bottom and concave grooves.The size of the antenna is28mm×24mm×1.524mm.HFSS simulation results show that the proposed antenna exhibits an impedance bandwidth over an ultra-wideband frequency range from3.1to12GHz with return loss less than﹣10dB.The voltage standing wave ratio is less than2,and has notch characteristics in three frequency bands of3.3to3.8GHz,5to6.1Hz,and7.9to8.8GHz,which effectively suppress the interference of WiMAX system,WLAN system and ITU to UWB system.It also demonstrates a nearly omnidirectional radiation pattern.

关 键 词：小尺寸 三陷波 UWB天线 

分 类 号：TN822.8[电子电信—信息与通信工程]