摘要
为了实现从后向端射到前向端射的连续波束扫描天线,该文基于双面平行带线结构提出了一种具有全空间扫描能力的漏波天线。天线单元由双面平行带线传输线和一对反向加载的开路枝节组成,两个开路枝节分别位于传输线的上导带和下导带。加载的反向开路枝节等效为一个偶极子,使得天线单元具有全向辐射性能,作为整个全空间扫描漏波天线的基础单元。为了抑制周期漏波天线中的开阻带问题,又在天线基础单元上加载了一对平衡槽以实现频率平衡条件,还加载了一对匹配槽以匹配周期结构的阻抗。最后实现了一款天线原型,经仿真与实验验证,该天线能够在7.6 GHz到14.0 GHz的频率范围内,实现从后向端射,经侧向辐射,然后到前向端射的全空间扫描能力。
Design investigation of a leaky-wave antenna aimed to acquire continuous beam scanning from the backfire direction to the endfire direction is presented on a Double-Sided Parallel-Strip Line(DSPSL)structure.The unit cell comprises a DSPSL structure and a pair of inverted open-ended stubs attached to the top and bottom strips,respectively.The loaded stubs act as a dipole and provide omnidirectional radiation performance,contributing to the full-space beam scanning potential of the leaky-wave antenna.To eliminate the open-stop band effect,two pairs of series slots are etched on the transmission line to meet the frequency balanced condition and match the Bloch impedance.Experiments of the designed prototype were consistent with the simulation,revealing that as the frequency varies from 7.6 GHz to 14.0 GHz,the proposed leaky-wave antenna radiates beams from the backfire direction through the broadside to the endfire direction.
作者
王亨辉
孙胜
刘能武
刘元安
WANG Henghui;SUN Sheng;LIU Nengwu;LIU Yuanan(School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;School of Electronic Engineering,Xidian University,Xi’an 710071,China;School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)
出处
《电子与信息学报》
EI
CAS
CSCD
北大核心
2024年第2期705-712,共8页
Journal of Electronics & Information Technology
基金
国家自然科学基金(61971115,61721001)。
关键词
漏波天线
全空间波束扫描
Bloch阻抗
开阻带抑制
双面平行带线
Leaky-wave antenna
Full-space beam scanning
Bloch impedance
Open-stop band suppression
Double-sided parallel-strip line
