天线功率辐射是否集中,可以用主瓣宽度这一参量来表示;主瓣中辐射功率为最大值的一半的两个矢径间的夹角称为主瓣宽度。主瓣宽度越小,方向图越尖锐,表示天线辐射越集中。副瓣的最大值相对主瓣最大值的比,称为副瓣电平,一般用分贝来表示
并借助计算机绘出了主瓣宽度和副瓣电平与天线主要参数的关系曲线;
With the aid of a computer, curves of beamwidth and side lobe versus the antenna parameters are plotted.
本文对均匀直线阵列天线在相控扫描过程中的主瓣宽度和方向性系数进行了估算。
In this paper, the main valve width and directive gain for uniform linear array of antennas in phased scanning are estimated.
理论上实现了用较少的天线单元,且与小直径圆柱面共形的阵列,激励产生副瓣电平较低、主瓣有一定的宽度且顶部较平坦的波束。
Theoretically, a column conformal array with small size and few elements to generate a shaped beam with low side lobe and main beam with fixed width and flat top is carried out.
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