车载复合天线的仿真方法研究

Research on Simulation Method of Vehicle Composite Antenna

该文建立了用于电磁计算的复合天线仿真模型,从两个维度介绍了复合天线的仿真分析方法,从分析结果来看,5G天线具有较强的辐射性能,GPS天线则具有较好的方向性,符合其各自性能特征的要求。两部天线之间的耦合度低于-45 d B,满足工程应用的条件。采用数值仿真的方法进行天线性能预测是可行的工程路径,该方法可用于设计开发前期评估复合天线的性能,从而减少开发后期优化的难度。

In this paper, the simulation model of composite antenna for electromagnetic calculation is established,and the simulation analysis method of composite antenna is introduced from two dimensions. According to the analysis results, 5G antenna has strong radiation performance, while GPS antenna has good directivity, which meets the requirements of their respective performance characteristics. The coupling degree between the two antennas is lower than -45 dB, which meets the conditions of engineering application. It is a feasible engineering path to use the numerical simulation method to predict the antenna performance. This method can be used to evaluate the performance of composite antenna in the early stage of design and development, so as to reduce the difficulty of optimization in the later stage of development.