【作者】 南敬昌； 杨清淞； 彭力； 孙静； 梅磊； 陈鑫；

【Author】 NAN Jingchang;YANG Qingsong;PENG Li;SUN Jing;MEI Lei;CHEN Xin;Liaoning University of Engineering and Technology;

【机构】 辽宁工程技术大学电子与信息工程学院；

【摘要】 提出了一款具有三陷波特性的小型化超宽带(ultra-wideband,UWB)天线,通过先确定辐射贴片再进行接地板的改进,从而使天线具备了超宽带的良好特性。为了使天线尺寸为20 mm×25 mm×1 mm的小型化天线满足良好的三陷波特性,本文采用在辐射贴片以及微带线上引入改良"U"形槽以及在微带线两侧添加对称钩形枝节的设计方法达到最终目的。仿真表明:此天线在4.25 GHz～4.9 GHz、7.1 GHz～7.75 GHz以及8.0～9.0 GHz的频段回波损耗大于-10 dB,能够有效抑制了微波通信波段,X波段,以及国际电信波段对于信号传输的干扰,天线带宽可以达到3.5 GHz～11.8 GHz,满足了UWB特性,可以投入到UWB通信的应用,且具备良好的陷波特性,在避免天线对其他频段的影响的同时,小型化的特性也更方便地应用在日常生活中。更多还原

【Abstract】 A miniaturized ultra-wideband(UWB) antenna with three-trap baud is proposed,and the antenna has good characteristics of ultra-wideband by first determining the radiation patch and then improving the ground patch.In order to make the miniaturized antenna with an antenna size of 20 mm× 25 mm × 1 mm meet the good three-notch characteristics,the design method of introducing improved "U" grooves on the radiation patch and microstrip line and adding symmetrical hook-shaped branches on both sides of the microstrip line is adopted to achieve the final goal.The simulation shows that the return loss of this antenna in the frequency band of 4.25～4.9 GHz,7.1～7.75 GHz and 8.0～9.0 GHz is greater than-10 dB,which can effectively suppress the interference of microwave communication band,X-band,and international telecommunication band on signal transmission.The antenna bandwidth can reach 3.5 GHz～11.8 GHz,which meets the UWB characteristics,can be put into UWB communication applications,and has good notch characteristics,while avoiding the impact of antennas on other frequency bands,miniaturization characteristics are also more convenient for application in daily life.更多还原