摘要
为了解决副面遮挡导致小口径卡氏天线(D=293mm)副瓣电平恶化这一难题,本文提出了一种优化赋形方法。采用优化口径场分布,对主、副面形状进行赋形设计。用该法设计了一种八毫米低副瓣卡氏天线(sll1≤-25dB),实验结果与理论计算十分吻合。
Subreflector blockage causes the side lobe level of litlle aperture cassegrain antenna to rise.In order to solve the problem,an optimization-correction method is presented.The method optimizes aperture distribution and corrects the shapes of dual reflector.A 8mm lower sidelobe cassegrain antenna is designed.The experimental result is in agreement with the theory computation.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
1994年第3期34-38,共5页
Journal of National University of Defense Technology
关键词
低副瓣
卡氏天线
赋形
优化设计
ss:lower sidelobe
Cassegrain antenna
correction
optimizatoin