一、前言通常在计算已知电流分布的天线辐射场时,要先知道电流元的辐射场.而为了得到电流元辐射场的定量表示式,又需要利用位函数和从麦克斯韦方程组导出的非齐次波动方程求解.解出偏微分方程之后,还要通过矢量场的微分运算才能求出电场和磁场.这样做,要求人们熟悉矢量场的微分和积分计算方法,以及 I. INTRODUCTION In general, when calculating the radiation field of an antenna with known current distribution, we first know the radiation field of the current element, and in order to obtain the quantitative representation of the radiation field of the current element, we also need to use the bit function and the non- Homogeneous wave equation solution. Solving the partial differential equation, but also through the vector field differential operation to find the electric and magnetic fields.This, requires people familiar with vector field differential and integral calculation method, and