提出了具有紧凑型结构的环形双极化超宽带辐射单元。辐射单元由4个偶极子及其巴伦装置组成,每个偶极子的双臂呈90°相互垂直,相邻偶极子振子臂相互交叠,从而将天线的物理口径减小至低频点工作波长的40%。辐射单元采用巴伦(Balun)支...提出了具有紧凑型结构的环形双极化超宽带辐射单元。辐射单元由4个偶极子及其巴伦装置组成,每个偶极子的双臂呈90°相互垂直,相邻偶极子振子臂相互交叠,从而将天线的物理口径减小至低频点工作波长的40%。辐射单元采用巴伦(Balun)支撑装置采用倾斜和向内收缩结构使巴伦结构的高度降低至低频点工作波长的13%。辐射单元在698—960 MHz的超宽带(ultra wide band,UWB)(31%相对带宽)内具有良好的电压驻波比(voltage standing wave ratio,VSWR)(小于1.4)。利用该辐射单元组成四单元阵列基站天线,该天线水平面波束宽度为65°±5°,前后比在26 d B以上,±60°内的交叉极化比在11.6 d B以上,轴向交叉极化在19.8 d B以上。展开更多
This paper presents the design of a compact bow-tie antenna with triple band notched characteristics for UWB applications. The proposed antenna can operate from 3.1 to 10.6 GHz with VSWR -...This paper presents the design of a compact bow-tie antenna with triple band notched characteristics for UWB applications. The proposed antenna can operate from 3.1 to 10.6 GHz with VSWR - 8.4 GHz) centered at 8.1 GHz, the CSRR2 rejects the WLAN band (5.15 - 5.85 GHz) centered at 5.6 GHz, and the CSRR3 rejects the band (4.10 - 4.47 GHz) centered at 4.32 GHz. Compared with recent design, this antenna is more compact, and presents better simulation results of its characteristics. Our newly designed antenna is a potential candidate for application in UWB communication systems.展开更多
文摘提出了具有紧凑型结构的环形双极化超宽带辐射单元。辐射单元由4个偶极子及其巴伦装置组成,每个偶极子的双臂呈90°相互垂直,相邻偶极子振子臂相互交叠,从而将天线的物理口径减小至低频点工作波长的40%。辐射单元采用巴伦(Balun)支撑装置采用倾斜和向内收缩结构使巴伦结构的高度降低至低频点工作波长的13%。辐射单元在698—960 MHz的超宽带(ultra wide band,UWB)(31%相对带宽)内具有良好的电压驻波比(voltage standing wave ratio,VSWR)(小于1.4)。利用该辐射单元组成四单元阵列基站天线,该天线水平面波束宽度为65°±5°,前后比在26 d B以上,±60°内的交叉极化比在11.6 d B以上,轴向交叉极化在19.8 d B以上。
文摘This paper presents the design of a compact bow-tie antenna with triple band notched characteristics for UWB applications. The proposed antenna can operate from 3.1 to 10.6 GHz with VSWR - 8.4 GHz) centered at 8.1 GHz, the CSRR2 rejects the WLAN band (5.15 - 5.85 GHz) centered at 5.6 GHz, and the CSRR3 rejects the band (4.10 - 4.47 GHz) centered at 4.32 GHz. Compared with recent design, this antenna is more compact, and presents better simulation results of its characteristics. Our newly designed antenna is a potential candidate for application in UWB communication systems.
