摘要
首先把待求阵因子分解为若干组子阵因子的叠加.每个子阵对应一组相位线性递变、幅度按一定规律加权的空间电流谐波,子阵阵因子的空间指向对应一定的空间抽样点.各空间谐波之和即为阵元的总激励,它对应等求的阵因子.调整空间谐波的个数、相对幅度及空间抽样点位置,即可综合出理想的方向图.综出一个设计实例以说明这种综合方法.
A desired pattern factor can be regarded as a superposition of a set of'sub-array factors',each linearprogressing phase and weighting amplitude.The main-beam of each sub-array corresponds to a certain space sampling point.The sum of all space hamonic currents is the excitation which corresponds to the desired pattern.By adjusting the number of space hamonic,the weighting coefficients and the positions of sampling points,the required pattern can be obtained.Finally,an example is given for illustrating this method.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1994年第9期93-95,共3页
Acta Electronica Sinica
关键词
天线阵
方向图
方向图综合
ntenna array,Pattern,Synthsis method of Pattern