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利用同轴内导体延伸作为探针对印刷天线进行直接馈电是一种易于实现的馈电方式。本文介绍了一种分析单臂探针馈电印刷线天线的数值方法。该方法是基于并矢格林函数和互易定理求解电流积分方程的矩量法 ,适合于分析任意形状印刷线天线。首先给出描述电流分布的积分方程及其矩量法求解公式。在解得电流分布基础上 ,应用驻相法计算远区辐射场。通过计算与实验比较 ,验证了分析方法和计算程序的正确性。最后对一圆极化开口印刷圆环天线进行分析计算 ,表明了方法的实用价值
The use of coaxial inner conductor extensions as probes for direct feeding of the printed antenna is an easy-to-implement method of feeding. This article presents a numerical method for analyzing a single-arm probe-fed printed antenna. The method is based on the dyadic Green’s function and the reciprocity theorem to solve the current integral equation of the moment method, suitable for analysis of any shape printed wire antenna. First, the integral equation describing the current distribution and the method of solving the moment method are given. Based on the solution of the current distribution, the station-phase method is used to calculate the far-field radiation field. The correctness of the analysis method and calculation program are verified by comparison between calculation and experiment. Finally, a circularly polarized circular printed circular antenna was analyzed and calculated, indicating the practical value of the method