S波段大型功分馈电网络设计

为了满足某平面阵列天线高增益、低副瓣的要求，设计了工作在S波段、相对带宽为10％的1—48的大型功分馈电网络。该馈电网络采用带状线功分器与微带线功分器级联而成。利用HFSS、Ansoft Designer等电磁软件对其进行仿真设计。实测结果表明在所要求的频段内，网络的输入驻波小于1．50，相位误差小于10°。

The Design of Large-Size Feeding Network for S Band

To satisfy the requirements of a plane antenna array which has high gain and low sidelobe,a S band 48-way feeding network has been designed with 10% relative bandwidth.This feeding network is designed using the series of a microstrip power divider and a stripline power divider.Using 3D full wave simulator,HFSS and Designer,the anthors give the simulation result.Test result shows that the VSWR is below 1.50 and the phase error is less than 10 degree.