摘要
在无线通信系统链路设计中,天线方向增益是一个关键参数。然而由于天线周围物体的影响,实际中天线方向增益与理想情况并不一致。本文采用射线追踪法(GTD)结合数字地图(GIS)计算分析了位于不规则地面上振子天线的天波方向图,并与工程上采用镜像法得出的结果进行了比较。比较结果充分证明了此方法的正确性和高效性,并具有一定的工程意义。
In the design of the wireless communication system links,the antenna direction plus is a key parameter. However,because of the impact of the other objects around the antenna, the actual plus is disaccord with the plus in theory. Skywave pattern of dipole antenna which is near to irregular terrain is analyzed by the hybrid of GTD and GIS. This pattern is compared with the result gotten by image method, which shows validity of the proposed method. And this method has engineering significance.
出处
《现代电子技术》
2007年第9期9-10,13,共3页
Modern Electronics Technique
