一种三陷波超宽带贴片天线设计  

Design of a three-notch UWB patch antenna

作　　者：刘秋雨 韩波 代兆国 LIU Qiuyu;HAN Bo;DAI Zhaoguo(School of Computer and Information Engineering,Fuyang Normal University,Fuyang Anhui 236037,China)

机构地区：[1]阜阳师范大学计算机与信息工程学院,安徽阜阳236037

出　　处：《阜阳师范大学学报（自然科学版）》2024年第3期74-79,共6页Journal of Fuyang Normal University:Natural Science

基　　金：安徽省自然科学基金面上项目(2008085MF215);安徽省高校科学研究重大项目(2022AH040198)资助。

摘　　要：设计了一种新型的具备三陷波特性的超宽带(ultra-wideband,UWB)天线,其尺寸为31 mm×18 mm×0.8 mm,天线采用在辐射贴片下半部分两侧进行切角和在接地板的中部开槽的方法,扩宽了天线的工作频段,达到了规定的3.1 GHz~10.6 GHz带宽要求。通过在辐射贴片上部分刻蚀倒“L”形缝隙、在辐射贴片下部分刻蚀倒“U”形缝隙以及在微带馈线上刻蚀类“H”形缝隙的方法抑制了3.15 GHz~4.0 GHz、5.1 GHz~5.85 GHz和6.7 GHz~8.2 GHz三个频段,实现了WiMAX、WLAN以及X波段通信下行频率的陷波工作性能,3个陷波段的驻波比均大于2。该天线三陷波特性优越,综合性能优良,在无线通信系统领域中具有较好的应用前景。A new type of UWB(ultra-wideband,UWB)antenna with triple-trap is designed,the size of which is 31 mm×18 mm×0.8 mm.The antenna adopts the method of cutting the Angle on both sides of the lower part of the radiation patch and grooving in the middle of the ground floor.The working frequency band of the antenna is expanded successfully,and the bandwidth of 3.1~10.6 GHz is achieved.Three frequency bands of 3.15~4.0 GHz,5.1~5.85 GHz and 6.7~8.2 GHz are suppressed by partially etching the inverted"L"slot on the radiation patch,partially opening the inverted"U"slot under the radiation patch and partially employing the H-shaped slot on the microstrip feeder.The notch performance of WiMAX,WLAN and X band communication downlink frequency is achieved,and the standing wave ratio of the three notch bands is greater than 2.The superior triple band-notched antenna is excellent in comprehensive performance in the field of wireless communication system and promises to be applied more extensively.

关 键 词：超宽带天线 三陷波特性 微带馈电 单极子天线 

分 类 号：TN826[电子电信—信息与通信工程]