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天线是现代汽车上经常使用的设备之一,研究天线电磁特性受车体影响的情况和不同类型天线间的干扰情况是十分重要的。建立了逼真的汽车模型,利用CST微波工作室对模型上不同位置的鞭天线电磁特性及鞭天线与PIFA天线间的耦合度进行了仿真研究,最终通过仿真结果得出最佳的天线安装位置及天线间的耦合情况。分析过程和所得到的结果可作为汽车电磁兼容研究及车载天线设计的手段和依据。
Antennas are one of the most frequently used devices in modern automobiles. It is very important to study the electromagnetic characteristics of an antenna affected by the vehicle body and the interference between different types of antennas. A realistic car model was established. The electromagnetic characteristics of whip antenna at different positions on the model and the coupling degree between whip antenna and PIFA antenna were simulated by CST microwave studio. Finally, the best antenna installation position and Coupling between antennas. The process of analysis and the results obtained can be used as a means and basis for the research of automotive electromagnetic compatibility and the design of vehicle-mounted antennas.