摘要
指出了目前平板裂缝天线子阵中存在的相位台阶现象,并分析了相位台阶对天线性能的影响。在仿真计算和工程设计的基础上,提出了功率平衡设计原则,以减弱或消除子阵的相位台阶,在一定程度上拓展了天线带宽,同时也改善了天线E面由于相位台阶引起的副瓣恶化现象。
Firstly phase-step of subarray of slotted-waveguide array is brought forward firstly and effect to antenna performance is analyzed.Base on simulated computation and engineering design,power-balance principle is presented to reduce or eliminate phase-step of subarrays.To a certian extent,antenna′s bandwidth is broadened and depravation of E-plane′s sidelobe is improved which is caused by phase-step.
出处
《现代雷达》
CSCD
北大核心
2010年第12期72-74,78,共4页
Modern Radar
关键词
平板裂缝天线
子阵
相位台阶
功率平衡原则
slotted-waveguide antenna
subarray
phase-step
power-balance principle
