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与自由空间中不同,在实际复杂的电磁环境中,通信车载体及地面环境对天线的辐射特性会产生重要的影响。建立天线、通信车载体及地面环境一体化的仿真模型对提高仿真精度,指导工程应用具有重要的意义。本文应用FEKO仿真软件建立了准确的通信车载体模型,依据介质电参数建立了典型地面环境的等效模型,详细讨论了天线的架设高度以及天线的架设角度对天线的电磁特性的影响规律,为分析复杂电磁环境下天线的性能和系统间电磁兼容性预测问题提供了数据支持,具有重要的应用价值。
Different from the free space, in the actual complex electromagnetic environment, the communication vehicle carrier and the ground environment have an important influence on the radiation characteristics of the antenna. The establishment of the antenna, communication vehicle carrier and the integration of the ground environment simulation model to improve simulation accuracy, guidance of engineering applications is of great significance. In this paper, the FEKO simulation software is used to establish an accurate communication vehicle carrier model. Based on the dielectric parameters, an equivalent model of a typical ground environment is established. The influence of the height of the antenna and the antenna placement angle on the electromagnetic characteristics of the antenna is discussed in detail. It provides data support for the analysis of antenna performance in complex electromagnetic environment and electromagnetic compatibility prediction between systems and has important application value.