紧凑型带阻特性矩形微带贴片超宽带天线设计与实现  

Design and Implementation of a Compact Rectangular Microstrip Patch UWB Antenna with Band-stop Characteristics

作　　者：杨波[1] 罗斌[2] YANG Bo;LUO Bin(Sichuan Vocational College of Information Technology,Guangyuan 628040,China;School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]四川信息职业技术学院,四川广元628040 [2]西南交通大学信息科学与技术学院,成都611756

出　　处：《火力与指挥控制》2020年第12期68-72,79,共6页Fire Control & Command Control

基　　金：国家“863”基金(2015AA016903);四川省科技计划基金资助项目(2019JDJQ0022)。

摘　　要：为了抑制超宽带通信系统和现有无线局域网通信系统之间的干扰,提出了一种具有带阻特性的紧凑型超宽带天线。该天线由一个简单的截断矩形贴片组成,带有U形槽和部分接地面。贴片的下角用半圆截断以实现宽带特性,而陷波是通过在辐射贴片上蚀刻U形槽而实现的。在泰康利TLY-5基板上进行了具体实现。模拟和测量结果表明,所提出的天线具有2.9 GHz^23.5 GHz的工作带宽,VSWR小于2,陷波频带为具有4.9 GHz^6.1 GHz,可以抑制IEEE 802.11a和HIPERLAN/2频段。相比现有的UWB天线,该天线具有良好的性能,包括中等增益(Gmax=6.1 dB)、接近全向的辐射特性以及13×22×0.8 mm3的紧凑型整体尺寸。In order to suppress the interference between UWB communication system and existing WLAN communication system,a compact UWB antenna with band-stop characteristics is proposed.The antenna consists of a simple truncated rectangular patch with a U-groove and a partially grounded surface.The lower corner of the patch is truncated by a semi-circle to achieve broadband characteristics,while the notch is achieved by etching U-grooves on the radiation patch.It is implemented on the TLY-5 substrate of Taikangli.The simulation and measurement results show that the proposed antenna has a working bandwidth of 2.9 GHz^23.5 GHz,VSWR less than 2,notch band of 4.9 GHz^6.1 GHz,and can suppress the frequency bands of IEEE 802.11a and HIPERLAN/2.Compared with the existing UWB antenna,the antenna has good performance,including medium gain(Gmax=6.1 dB),near omnidirectional radiation characteristics,and compact overall size of 13*22*0.8 mm3.

关 键 词：超宽带天线 微带贴片 干扰抑制 阻带特性 

分 类 号：TN722.75[电子电信—电路与系统]