船舶定线制水域AIS基站的等离子体八木天线

发布时间：2018-07-31 19:10

【摘要】：针对目前广泛使用的AIS基站发射天线的不足,提出将等离子体八木天线应用到海事智能通信领域,作为船舶定线制水域AIS基站的发射天线.该方法根据等离子体介电常数与电子密度的关系,利用HFSS构建AIS基站等离子体八木天线模型.通过改变该模型等离子体参数、无源振子个数等,对其进行方向图仿真.仿真结果表明:当关闭无源振子时,天线可作为全向天线;当增加无源振子个数和电子密度时,该天线定向性增强,方向图主瓣变窄.用该方法建立的天线可快速实现全向与定向之间的转换,显示出良好的可重构性.仿真结果证明了船舶定线制水域AIS基站使用等离子体八木天线的可行性.该方法可改善定线制水域的通信效果和海事监管能力.
[Abstract]:Aiming at the shortage of the widely used AIS base station transmitting antenna, this paper puts forward the application of plasma octagonal antenna to the maritime intelligent communication field, which can be used as the launching antenna of the AIS base station in the ship-fixed water area. According to the relationship between plasma dielectric constant and electron density, the HFSS model of plasma octagonal antenna based on AIS base station is constructed. By changing the plasma parameters and the number of passive oscillators, the pattern of the model is simulated. The simulation results show that the antenna can be used as an omnidirectional antenna when the passive dipole is closed, and when the number of passive dipoles and the electron density are increased, the directional property of the antenna is enhanced and the main lobe of the pattern becomes narrower. The antenna constructed by this method can quickly realize the conversion between omnidirectional and directional, and shows good reconfiguration. The simulation results show the feasibility of using the plasma Yagi antenna in the AIS base station. This method can improve the communication effect and maritime supervision ability of the fixed-line water area.
【作者单位】：上海海事大学商船学院;
【基金】：交通运输部应用基础研究项目(2015329810030) 上海市自然科学基金(13ZR1418700) 上海市人才发展基金(201436) 2015年度上海市地方院校能力建设项目(15590501600) 上海高校青年教师培养资助计划
【分类号】：U675.7

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