摘要
以天线方向图函数为例 ,分析了对称阵子天线、阵列天线方向图函数 F (θ,φ)随各参量变化的规律以及二维图形的特点 ,并讨论了直线天线阵 (单向端射阵 )的最大辐射方向和主瓣宽度随各参量变化的二维、三维图形特点。借助 MATL AB的绘图功能 ,对各种天线的方向图函数的二维、三维图形进行研究 ,可以观察到天线辐射场在不同方向的辐射能量分布 ,直观清楚地表现出辐射方向图的特点。
This paper takes the antenna radiation pattern as an example,and analyzes the rules of the function F(θ,φ) varging with the parameters for the dipole and antenna arrays radiation pattern,as well as the characteristic of the two-dimensional figure. In addition,we discuss the characteristics of the two and three-dimensional figure when the maximum radiation and the width of major lobe varys with the parameters in the end-fire array. It introduces the way of plotting complicated antenna directional radiation pattern of two and three-dimensional figure with the help of plotting functions of MATLAB, the radiating energy distribution of the antenna radiation field in different directions can be observed from radiation pattern of the antenna,and the characteristic of the radiation pattern can be shown clearly.
出处
《电气电子教学学报》
2004年第4期24-27,共4页
Journal of Electrical and Electronic Education
