The Internet of vehicles (IoV) is an important part of mobile communication system with the development of Internet of things. A novel multiband automobile antenna is proposed, which can cover all frequency bands for the long-term evolution (LTE), the fifth generation wireless systems (5G), the wireless local area network and the dedicated short-range communication (from 690 to 944 MHz and from 1.46 to 6 GHz). The antenna is designed based on the monopole antenna, and the impedance matching performance of the antenna is improved by loading the toothed capacitor and the impedance matching disk. The simulation results show that the automobile antenna achieves good impedance matching in the working bandwidth and obtains omnidirectional radiation pattern in the horizontal direction. The electric field distribution of the antenna placed on the vehicle roof is simulated to evaluate the network performance of the antenna system in the urban environment. The transmission coefficient of the transceiver system using the automobile antenna is also analyzed based on the electromagnetic simulation results and statistical model. The blind area of mobile communication system is effectively covered with the automobile antenna, which could be used to connect the LTE cell and the IoV system.

随着物联网的发展，车辆互联网（IoV）是移动通信系统的重要组成部分。提出了一种新颖的多频带汽车天线，它可以覆盖长期演进（LTE），第五代无线系统（5G），无线局域网和专用短程通信（从690到944）的所有频带MHz和1.46至6 GHz）。该天线是基于单极天线设计的，通过装入齿形电容器和阻抗匹配盘可以提高天线的阻抗匹配性能。仿真结果表明，汽车天线在工作带宽内实现了良好的阻抗匹配，并在水平方向上获得了全向辐射方向图。模拟放置在车顶上的天线的电场分布，以评估城市环境中天线系统的网络性能。基于电磁仿真结果和统计模型，还分析了汽车天线收发系统的传输系数。汽车天线有效地覆盖了移动通信系统的盲区，可用于连接LTE小区和IoV系统。