中文摘要：

传统的卫星通信车载移动天线的设计采用试凑法，设计过程漫长，试凑数据量大。虽然采用天线阵列的形式初步改善了天线性能，但未进行进一步性能优化。为了改善传统方法的不足之处，依据天线增益和天线尺寸之间的关系得出天线设计的经验公式，应用经验公式设计喇叭单元，大大提高了天线设计效率。另外，采用天线阵列的形式提高天线性能，并将横纵喇叭个数和喇叭单元的横纵间距作为参数，应用参数排列组合的方式进行天线性能的进一步优化。将设计的喇叭单元和天线阵列在HFSS中进行仿真，仿真结果表明：设计的喇叭阵列天线满足车载移动卫星天线的性能要求，且实现了天线性能的优化。对仿真结果分析可得，天线的增益和回波损耗都优于传统方法设计的天线。

英文摘要：

The traditional design method of vehicle mobile satellite antenna is cut - and - try method. This method has long process and huge data. Although the antenna array improves the performance, it does not optimize the performance further. For improving the deficiencies of the traditional method, empirical formulas are obtained based on the relationship between antenna＇s gain and antenna＇s size. The empirical formulas are used in the design of horn cell to speed up the design process. And the horn array is designed for the better performances. The horn number and horn distance along the vertical and horizontal directions are considered as parameters, and antenna parameters combi- nation is used for performance optimization. At last, the designed horn cell and horn array antenna are simulated in HFSS. The simulation results show that the designed antenna array meets the performance demands and the antenna performance optimization is realized. Analysis shows that the gain and return loss of the design antenna are better than those of the traditional antenna.