新型双阻带超宽带单极天线  

Novel dual band-notched UWB monopole antenna

作　　者：吴绪镇[1] 薛锋章[1] 

机构地区：[1]华南理工大学电子与信息学院,广东广州510641

出　　处：《重庆邮电大学学报（自然科学版）》2012年第3期345-348,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：广东省自然科学基金(31391)~~

摘　　要：提出一种新型的具有双阻带特性的超宽带单极子天线。该天线采用渐变微带线馈电,阻抗带宽在电压驻波比(voltages standing wave ratio,VSWR)小于2时,为3.1～14.4 GHz。通过在扇形单极子天线上开弧形槽及对称双竖槽,实现了对WLAN5.5,WIMAX3.5及C波段卫星通信系统的频带抑制。实验结果表明,该天线在整个工作频段内具有良好的阻抗特性和辐射特性,适用于超宽带无线通信系统。A novel dual band-notched UWB monopole antenna is presented.The antenna is fed by a tapered microstrip line,with a bandwidth（VSWR2）range of 3.1 to 14.4 GHz.By cutting an arc shaped slot and a pair of symmetrical vertical slots on the fan shaped monopole,the band rejection of WLAN5.5,WIMAX3.5 and C-band satellite communication system is achieved.Experimental results prove good impedance characteristics and radiation patterns have been achieved over the entire operating frequency range.The proposed antenna is suitable for UWB wireless system.

关 键 词：超宽带天线 双阻带 微带馈电 开槽 

分 类 号：TN822.8[电子电信—信息与通信工程]