总体方案阶段星载天线电磁兼容的仿真

为适应卫星总体方案阶段对星载天线电磁兼容的快速预测需求,提出了Antenna Magus和FEKO软件相结合的快速仿真方法。首先利用Antenna Magus建立天线的初级模型,再无缝导入FEKO软件并优化得到分析所需天线模型,最后进行天线对之间的隔离度仿真。并对某型号卫星总体方案阶段论证中增加S中继终端分系统带来的天线电磁兼容问题进行了仿真,仿真结果与实际测量结果一致,表明仿真方法可有效应用于卫星工程实践。

Simulation Analysis of EMC between Spaceborne Antennas in Scheme Phase of Satellite System Design

In this paper,Antenna Magus combined with FEKO is proposed to meet the demand of rapid analysis of EMC problem between spaceborne antennas in satellite’s scheme phase.Antennas’ primary models are to build up in Antenna Magus firstly,and will be secondly seamless imported to FEKO to get the needed models after some appropriate optimizations.Endly,isolation between antennas will be simulated.As an example,EMC problem between antennas in a satellite’s scheme phase brought by a new subsystem called S-band relay terminal is simulated.The simulation results agreed well with the measurements,which means that the simulation method could be effective used to satellite engineering.