探针馈电印刷线天线的矩量法分析——(II)多臂天线

Moment Method Analysis of Probe-Fed Printed Wire Antennas——Part II: Multiple-Arm Cases

通过应用模式分解法 ,本文将单臂探针馈电印刷线天线的分析方法推广到具有旋转对称性的任意多臂探针馈电印刷线天线的分析计算。首先给出探针馈电 N臂印刷线天线的电流积分方程、矩量方程及远区辐射场计算公式 ;通过一个中心馈电螺旋天线的分析计算验证方法和计算程序的正确性 ;设计出具有良好圆极化特性的开口双圆环印刷线天线 ;

A moment method solusion for probe-excited single-arm printed wire antennas is extended to probe-excited multiple-arm printed wire antennas. A unified current integral equation for the current distribution is developed for N -arm printed antennas with an arbitrary arm shape. The validity of the formulation is verified by comparing the computed current distributions and radiation patterns for two-arm and four-arm Archimedian spiral antennas with published results. Also, the numerical results for a two-arm circular -polarization open-loop is given.