一种新型的超宽带天线的研究  

Research of a novel ultra-wideband antenna

作　　者：胡少文[1] 吴毅强[1] 罗斌[1] 邓淼[1] 廖昆明[1] 周辉林[1] 

机构地区：[1]南昌大学电子信息工程系,江西南昌330031

出　　处：《电子技术应用》2013年第1期90-92,共3页Application of Electronic Technique

基　　金：国家自然科学基金项目(61062009)

摘　　要：提出了一种微带馈电的超宽带天线。该天线印刷在覆铜介质基板上,介质基板尺寸为30 mm×35 mm×1.5 mm,材料是介电常数为4.4的FR4介质。利用仿真软件HFSS对天线参数进行仿真和优化。通过在微带面上开缝,可实现天线频带宽度(S11<-10 dB)2.5 GHz^11.5 GHz,相对带宽达128%。结果表明,该天线不仅满足超宽带要求,而且结构简单,体积小,适合在UWB通信中应用。A micrn-strip-fed ultra-wideband antenna is proposed. The antenna was etched on a copper-cladding substratc, whose material was FR4 with relative permittivity of 4.4, and the magnitude was 30.0mm×35.0mm×1.5mm. The antenna model was organized and optimized with the help of HFSS. The bandwidth（return loss ≤-10 dB） starts from 2.5 GHz up to 11.5 GHz that means a relative bandwidth of 128% by slotting on the surface of micro-strip. The resuhs show that the proposed antenna not only realizes UWB but also is simple in structure small in size, suitable for UWB communications.

关 键 词：微带馈电 超宽带天线 微带开缝 

分 类 号：TN92[电子电信—通信与信息系统]