随着电子技术的飞速发展和现代航空战备需要,飞机上装备越来越多的通信、电子设备,而由于机体自身尺寸有限,要加装多个通信、电子系统时,就需要考虑通信系统中天线布局设计.利用仿真软件进行天线系统仿真计算,选用了机身较小的直升机,计算了各天线独立在飞机上某一频点的方向图,以及加装天线的方向图,并计算了相互之间的隔离度.根据方向图及相互之间的隔离度,考虑如何避免相互之间干扰.%With the speedy development of electronic technology and the need of modern aviation combat readiness, communications and electronic devices have been increasingly installed on aircrafts. However, because of restricted size of the air-frame, antenna Layout in communications system should be taken into account seriously when multiple communications and electronic systems are installed on the airframe. In this paper, the simulation software is used to simulate antenna system. A helicopter with relatively small airframe is selected. Directional diagram of each antenna on the helicopter is calculated as well that of additionally-installed antennas. On the basis of directional diagrams and the isolation between antennas, how to avoid interference between antennas should be considered.
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