摘要
为满足共形相控阵的功率分级和极化捷变的要求,给出了一种新的圆柱阵列天线设计方法。阵列天线的天线单元由两种极化正交的线极化单元构成,且在阵列中交替出现。针对天线单元只能以开启或关闭进行幅度控制,提出了基于天线单元有效辐射功率排序方法的功率分级方案,并采用多目标粒子群算法对副瓣和交叉极化进行了抑制。仿真结果表明,基于双天线单元类型的圆柱阵列天线有效地实现了功率分级,在期望方向上实现了指定极化方向的最大功率辐射,且副瓣和交叉极化低。
For power classification and polarization control of conformal phased array antenna, a new cy- lindrical array antenna with two types of elements arranged alternately on its surface is designed. Then, a power classification method based on effective sorting of radiated power of elements is proposed when each antenna element is only turning on or off status. Finally, sidelobes and cross-polarization are opti- mized by multi-objective particle swarm optimization （MOPSO）. Results indicate that with low side- lobes and cross-polarization, maximum power radiation in the given radiated direction and polarization direction can be effectively got in this cylindrical phased array antenna.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
2013年第3期410-414,共5页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
阵列天线
极化控制
功率分级
多目标粒子群优化
array antenna
polarization control
radiated power classification
multi-objective particleswarm optimization
