卫星天线辐射方向图的计算

Calculation of Radiation Patterns for Satellite Antennas

利用几何绕射理论分析了卫星星体和太阳翼对卫星天线辐射场的影响 ,建立了一套以数值分析和仿真技术为主的卫星天线辐射场的预估方法 ,克服了传统设计与测量技术难于解决的问题。给出了一些数值计算验证 ,并结合型号设计 ,进行了实验验证。验证结果表明文中所作的理论分析和在此基础上开发的仿真算法和软件是可靠有效的。

The impact of the satellite body and solar panel on the antenna radiation pattern is studied by means of geometrical theory of diffraction (GTD).A numerical simulation software is developed and used to calculate radiation patterns of X-band data transmission antenna (DTA) of the earth resource satellite developed by CAST.The simulation results demonstrate the validity and effectiveness of the simulation algorithm and software.