水面救生机器人天线耦合分析

Antenna Coupling Analysis of Surface Rescue Robot

为了研究水面救生机器人天线间的电磁耦合度,同时建立所有尺寸的水面救生机器人仿真电磁简化模型,采用Solidworks软件对水面救生机器人进行建模。水面救生机器人作为小型系统,需要搭载几种天线,电磁环境相对复杂。为了保证机器人天线相互之间干扰较小,根据天线的放置位置、天线数量分析其对天线的影响,然后根据S参数理论,得出接收天线和发射天线之间的电磁耦合度方程,并结合实际情况,对天线中的耦合现象使用CST进行分析,分析理想导体平面上天线的耦合度。结果表明,天线的放置位置、天线数量均对天线的方向图、增益等产生一定的影响,天线间的耦合度随着天线间距的增大有减小的趋势。

In order to study the electromagnetic coupling between the antennas of the surface rescue robot, and to establish a simplified electromagnetic simulation model of the surface rescue robot of all sizes, Solidworks software is used to model the surface rescue robot. As a small system, the surface rescue robot needs to carry several antennas, and the electromagnetic environment is relatively complex. In order to ensure that the antennas on the robot interfere with each other less, this paper analyzes the influence on the antenna according to the placement position of the antenna and the number of antennas, and then according to the S-parameter theory, the electromagnetic coupling degree equation between the receiving antenna and the transmitting antenna is obtained, and combined with the practice, CST is used to analyze the coupling phenomenon in the antenna, and the coupling degree of the antenna on the ideal conductor plane is analyzed. The results show that the placement position of the antenna and the number of antennas have a certain influence on the antenna pattern and gain, and the coupling between the antennas tends to decrease with the increase of the distance between the antennas.