固定容差参数的阵列天线方向图综合法

FIXED TOLERANCE SYNTHESIS TECHNIQUE FOR ARRAY ANTENNA RADIATION PATTERN

研究了设计参数具有固定容差的阵列天线方向图综合法;给出了阵列天线方向图容差优化的数学模型;提出了求解容差优化最坏情况问题的离散化方法;建立了直线阵列天线容差区内误差任意分布的物理模型,并采用修正正多面体优化方法对激励幅度具有容差的侧射天线阵进行了综合。当设计参数偏离其标称值时,文中的综合方法可以使天线性能的偏差最小。

In this paper we are concerned with the synthesis techni-ques of array antenna radiation pattern where the optimization parametersare subject to fixed tolerance.The mathematic models for array antennaradiation pattern optimization are given,the discrete method for solvingthe worst-case problem is presented and the physics models for arbitrarytolerance distribution of array elements are initiated,finally,the imp-roved regular polyhedron method is employed to optimize the broadsidearray in which the excitation amplitude have tolerance.In the presentwork the deviations of th actual performance from its desired one areminimized if the design parameters deviate from its nominal values.