精选优质文档- 倾情为你奉上 专心-专注-专业 一、 微波系统的组成 1、总论 微波通信系统是基于视距传播的通信系统，两站间的距离必须在视线范围之内。 The radio link propagation follows the line of sight: it requires a perfect clearing between transmitting and receiving antennas. The propagation medium is made of the lower layers of the atmosphere (a few meters to a few hundred of meters above ground) The non homogeneity of the atmosphere influences the waves propagation: 1) Path curvature 2) Reflecting, diverging, focusing intermittent events The radio link propagatio
