摘要
为满足无人机地面测控站在单天线工作模式下实现遥控、遥测链路的远距离、大仰角跨度的全方位通信,设计了一种宽带高增益全向波束赋形阵列天线。天线采用宽带印刷偶极子单元组成4元共轴线阵,通过并联耦合馈电的方式在28.9%的相对工作带宽内增益大于6 dB,同时采用遗传优化算法在1.65 GHz~1.75 GHz频带内进行俯仰波束赋形,使得第一零点增益≥–8 dB,从而实现宽角域的链路覆盖。
To meet the requirements of UAV ground TT&C station to achieve far-distance and large-elevation span omnidirectional communication with the single-antenna operating mode,a wideband high-gain omnidirectional beamforming array antenna is designed.The antenna adopts four broadband printed dipole units to form a coaxial array,by making use of parallel and coupling feeding method,the gain of the antenna is larger than 6 dB within 28.9%of the relative working bandwidth.At the same time,the genetic optimization algorithm is used for the beamforming of elevation plane in 1.65 GHz~1.75 GHz,realizing the first null no less than–8 dB,which achieving the link’s wide-angle coverage.
作者
李霞
韩来望
李勋
LI Xia;HAN Laiwang;LI Xun(Tianjin Aerospace Zhongwei Data System Technology Co.,Ltd.,Tianjin 300301,China;Tianjin Jinhang Institute of Technical Physics,Tianjin 300308,China)
出处
《遥测遥控》
2021年第4期76-81,共6页
Journal of Telemetry,Tracking and Command
关键词
宽带
高增益
全向
波束赋形
测控通信
Wideband
High gain
Omnidirectional
Beamforming
TT&C communication
