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本文研究了近场图案的幅度束控方法,它原则上适用于任意基阵。本方法不但能使某一平面上任一区域(这一区域受菲涅耳区条件限制)的旁瓣抑制到指定水平,而且可以使这一研究平面上的主瓣宽度达到最小或接近最小。本方法可以改变旁瓣和零点位置,改变各旁瓣的相对高度。本文对等距线阵的近场束控进行了数值计算,提高了横向和纵向分辨率。
In this paper, the amplitude control method of near-field pattern is studied, which is suitable for arbitrary array in principle. This method can not only reduce the sidelobe of a given area (which is limited by the Fresnel zone) in a certain plane to the specified level, but also minimize or minimize the width of the main lobe on the plane of this study. This method can change the side lobe and zero position, change the relative height of each side lobe. In this paper, the numerical simulation of near-field beam-steering of equidistance line array is carried out, and the horizontal and vertical resolution are improved.