阵列天线方向图的交替投影综合法

探讨了一种基于投影方式的阵列天线方向图综合法,并以１７个单元的线阵为例,在ＦＦＴ的抽样点为１２８个时,在计算机上完成了笔状形和ＣＳＣ２波形综合图的模拟。模拟结果证明用最小均方误差准则或极小化最大误差准则获得所需的方向图和综合方向图最小的误差是有效的。

Synthesis of Shaped-beam Radiation Patterns Using the Iterative Projecting Method

In this poper,a synthesis method based on the projector concept for antenna patterns of arrays is considered. A example for a linear equalspaced array of 17 elements is presented. In order to implement the method, the array factors are processed on 128 sample-points of a fast Fourier transform (FFT).Simulation results of cosec2 type and pencil-beam type pattern are completed by computer. An array factor which minimizes the" error" between the required pattern and synthesised pattern in our choice of both mean square error criterion or the minimax error criterion is achieved by this method.