探针馈电印刷线天线的矩量法分析——（Ⅰ）单臂天线

利用同轴内导体延和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量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。

Moment-Method Analysis of Probe-Fed Printed Wire Antennas--Part I: Single-Arm Cases

The coaxial probe feed of a printed antenna formed by extending the inner conductor of a coaxial line is a relatively simple feeding model. A general numerical technique is described for analysis of arbitrarily shaped single arm printed wire antennas. A unified current integral equation is given on the basis of dyadic Green's functions and the reciprocity theorem. The current distribution is obtained by using the method of moment. The radiation field solution involving both the printed antenna and vertical probe is also presented. The validity of the formulation is verified by comparing the numerically obtained input impedance and radiation patterns for a linear antenna and a meander antenna with measured data. A circular polarization open loop is investigated to illustrate the applicability of the present technique.