依据矩量法对偶极子天线和单线行波天线进行分析,将其分为多个小段,分别计算各段上的电流,然后根据电流分布计算出远场和近场的场强波瓣图,从近场随距离的明显变化得出天线近场分析的必要性。-Dipole antenna and a single-wire traveling wave antenna analysis based on the method of moments, will be divided into multiple small pieces, respectively, to calculate the current on each segment, the field strength of the far-field and near-field lobe diagram is then calculated according to the current distribution, draw antenna near-field analysis of the need for significant change with distance from the near-field.