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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。
Abstract：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.
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基本信息:
中图分类号:TN822
引用信息:
[1]侯翔宇,张兴红,曾凡峰,等.基于分形结构的超宽带单陷波天线的设计[J].无线电工程,2021,51(11):1343-1349.
基金信息:
国家自然科学基金资助项目(51875069)~~
2021-09-07
2021-09-07
2021-09-07