摘要
在考虑地面反射的条件下,利用矩量法(MoM)研究有限直径单极天线问题.分别采用脉冲基函数+点匹配、分段正弦基函数+点匹配方法,先计算振子电流,再得到天线远区方向图,并讨论了振子粗细、振子距离地面的高度、实际地面电参数等对单极天线方向性的影响.通过仿真比较两种算法的优劣.研究表明分段正弦基函数+点匹配的算法效率较高.
In the case of ground reflection, a monopole （MoM）. The current on monopole is calculated, and far-zone with finite diameter is studied by method of moment patterns are obtained with the pulse-basis functions ＋ point match method and the subsection-sine-basis functions ＋ point match method respectively. The effects of the diameter of monopole and its height from ground, and the electrical parameter of actual ground are discussed respectively. The performances of two arithmetics are compared by emulation. The results show that the subsectionsine-basis functions ＋ point match arithmetic is of higher efficiency.
出处
《空军雷达学院学报》
2005年第2期28-30,33,共4页
Journal of Air Force Radar Academy
关键词
单极天线
矩量法
地面反射
monopole
method of moment （MoM）
ground reflection
