电子元件与材料
電子元件與材料
전자원건여재료
Electronic Components & Materials
2015年
10期
76-80
,共5页
Vivaldi天线%双指数型%梳状结构%超宽带%高增益%方向图
Vivaldi天線%雙指數型%梳狀結構%超寬帶%高增益%方嚮圖
Vivaldi천선%쌍지수형%소상결구%초관대%고증익%방향도
Vivaldi antenna%double exponential type%comb structure%ultra-wideband%high gain%direction pattern
在常规Vivaldi天线的基础上提出一种双指数渐变加梳状槽结构的新型Vivaldi天线，该天线通过在辐射面引入梳状开缝结构，可以实现对天线表面电流的调整。该天线在2.4~10.6 GHz常用无线通信频率范围内驻波比小于2，天线增益达到6 dBi以上且在频带内保持较好的平坦度，实测结果与其仿真结果相吻合。在同等天线长度及张角条件下，该天线具有较常规 Vivaldi 天线更宽的工作带宽和更高的天线增益，且实测方向性良好，可用于各类无线通信系统。
在常規Vivaldi天線的基礎上提齣一種雙指數漸變加梳狀槽結構的新型Vivaldi天線，該天線通過在輻射麵引入梳狀開縫結構，可以實現對天線錶麵電流的調整。該天線在2.4~10.6 GHz常用無線通信頻率範圍內駐波比小于2，天線增益達到6 dBi以上且在頻帶內保持較好的平坦度，實測結果與其倣真結果相吻閤。在同等天線長度及張角條件下，該天線具有較常規 Vivaldi 天線更寬的工作帶寬和更高的天線增益，且實測方嚮性良好，可用于各類無線通信繫統。
재상규Vivaldi천선적기출상제출일충쌍지수점변가소상조결구적신형Vivaldi천선，해천선통과재복사면인입소상개봉결구，가이실현대천선표면전류적조정。해천선재2.4~10.6 GHz상용무선통신빈솔범위내주파비소우2，천선증익체도6 dBi이상차재빈대내보지교호적평탄도，실측결과여기방진결과상문합。재동등천선장도급장각조건하，해천선구유교상규 Vivaldi 천선경관적공작대관화경고적천선증익，차실측방향성량호，가용우각류무선통신계통。
An improved Vivaldi antenna with double exponential gradient and comb slots was proposed. By introducing comb slots in the radiation surface, the current of this antenna could be adjusted. In the 2.4–10.6 GHz band, this is also commonly used in wireless communication frequency, the measured VSWR is less than 2, the minimum gain achieves 6 dBi and keeps flat in the working band. The measured results are in good agreement with the simulation ones. Under the same length and caliber of antenna, the improved Vivaldi antenna has wider bandwidth and higher gain than the traditional one. It also has good directionality. Therefore, the proposed antenna can be adopted in various kinds of wireless communication systems.
