具有双带阻特性的超宽带缝隙天线  

UWB Slot Antenna with Dual Band-notched Characteristic

作　　者：韩曹政 唐晋生[1] 

机构地区：[1]西南交通大学电磁场与微波技术研究所,四川成都610031

出　　处：《电视技术》2015年第5期57-60,共4页Video Engineering

摘　　要：设计了一款微带馈电的超宽带缝隙天线,整体尺寸仅有30mm×30mm×1.6mm,在3.08~11GHz范围内驻波比小于2,可覆盖超宽带频段。为了实现对WiMAX和WLAN频段的陷波,分别在地板和馈线上蚀刻不同缝隙,仿真结果表明：在3.2~3.7GHz,5~5.9GHz驻波比大于2,增益显著下降,而在通带内仍然保持良好的全向辐射特性和稳定的增益。该天线结构简单、性能优良,能广泛应用于超宽带通信系统中。A microstrip-fed UWB slot antenna is designed, whose overall size is as small as 30mm×30mm×1.6mm.The voltage standing wave ratio （VSWR） of slot antenna is less than 2 over the frequency range of 3.08~11GHz, covering the whole range of UWB. Two kinds of slots are embedded into the ground plane and feed line to achieve dual band-notched characteristic in the frequency band of WiMAX and WLAN. The results of simulation show that the VSWR is greater than 2 in the frequency range of 3.2~3.7GHz and 5~5.9GHz where the gain decrease sharply, meanwhile this proposed antenna demonstrates almost omnidirectional radiation patterns and stable gain across the whole operating bandwidth. The band-notched antenna has a simple configuration and good performance, so it can be used in UWB communication widely.

关 键 词：超宽带 带阻特性 缝隙天线 开槽 

分 类 号：TN82[电子电信—信息与通信工程]