摘要
针对当前已有超宽带(Ultra-Wideband,UWB)天线尺寸较大、工作带宽较窄以及窄带通信系统对超宽带系统存在干扰的问题,设计了一款小型化超宽带单陷波天线,尺寸仅为25 mm×18 mm×1.6 mm,辐射贴片采用4阶迭代的圆环网状分形结构,同时采用缺陷地结构接地板以实现良好的超宽带特性。通过在微带馈线上刻蚀倒U形槽产生了8.0~8.7 GHz频段的陷波特性。仿真结果表明,天线在1.1~20.8 GHz的频段内可有效抑制国际电信联盟波段对超宽带系统的干扰。该天线具有小型化、宽频带的优点,且天线的单陷波特性扩大了天线应用范围,适用于大多数超宽带通信系统。
In view of the problem that the existing Ultra-Wideband(UWB)antenna is large in size,narrow in bandwidth,and narrowband communication system interferes with UWB system,a miniaturized single band-notched UWB antenna is proposed,which is only 25 mm×18 mm×1.6 mm in size.The radiation patch adopts 4-order iterative ring reticulated fractal structure,and the defected ground plate is used to achieve good UWB characteristics.By etching the inverted U-shaped narrow slit at the feeder,notch characteristics of the 8.0~8.7 GHz are produced.The simulation results show that the antenna can effectively suppress the interference of ITU band to UWB system in the frequency band of 1.1~20.8 GHz.The antenna has the advantages of miniaturization and broadband,and its single notch characteristics expand the application range of the antenna,which is suitable for most UWB communication systems.
作者
侯翔宇
张兴红
曾凡峰
张雨宸
HOU Xiangyu;ZHANG Xinghong;ZENG Fanfeng;ZHANG Yuchen(Liang-Jiang International College,Chongqing University of Technology,Chongqing 401135,China)
出处
《无线电工程》
北大核心
2021年第11期1343-1349,共7页
Radio Engineering
基金
国家自然科学基金资助项目(51875069)。
关键词
超宽带
单陷波
U形槽
分形结构
小型化
ultra-wideband
single band-notched
U-shaped narrow slit
fractal structure
miniaturization
