几种典型阵列天线的优化设计

发布时间：2018-05-17 18:53

本文选题：阵列天线 + 小型化　；参考：《南京信息工程大学》2017年硕士论文

【摘要】：随着我国北斗导航系统的日益成熟、移动终端设备的快速发展以及设备智能化浪潮的到来,对天线技术提出了更高的要求。本文以北斗导航终端天线、手持终端智能天线以及近场赋形阵列天线为研究对象,设计了三款用于不同领域的典型阵列天线,其主要工作包括:1、根据一体化的设计理念,设计1款应用于北斗导航终端的小型化2×2阵列天线,尺寸大小只有120mm×120mm。并且制作了实物,实测的结果和仿真很好吻合,各方面的性能指标都满足了设计要求。与传统天线阵列的设计方法相比,该方法的优势在于,可以自由控制阵列中天线单元间的间距,来达到小型化的效果。2、根据能量传输最优化理论,设计了一款用于手持终端的智能天线。设计了一款电压控制电路来给天线阵列提供合适的激励,取代了传统的馈电网络。仿真和实测结果都表明该设计达到了预期的设计要求,可以实现天线的方向图在一定的角度范围的任意的偏转,同时提高了在所需方向上的天线增益。3、借鉴小型化天线阵列的设计方法,采用能量传输最优化方法,设计了一款近场电场赋形天线,并将其应用到智能书架系统中。仿真和实测结果表明,在距天线上方170mm处近场区域内实现电场均匀分布的赋形效果,同时通过RFID系统,可以准确的识别出书架中贴有RFID标签的书本的数目。
[Abstract]:With the increasing maturity of Beidou navigation system in China, the rapid development of mobile terminal equipment and the arrival of intelligent equipment, the antenna technology has put forward higher requirements. Taking Beidou navigation terminal antenna, hand-held terminal smart antenna and near-field shaped array antenna as the research object, three typical array antennas used in different fields are designed in this paper. The main work includes: 1, according to the integrated design concept, A miniaturized 2 脳 2 array antenna used in Beidou navigation terminal is designed. The size of the antenna is only 120mm 脳 120mm. The measured results are in good agreement with the simulation, and all the performance indexes meet the design requirements. Compared with the traditional antenna array design method, the advantage of this method is that the spacing between antenna elements in the array can be freely controlled to achieve miniaturization effect. A smart antenna for handheld terminal is designed. A voltage control circuit is designed to provide a suitable excitation for the antenna array, replacing the traditional feed network. The simulation and experimental results show that the design meets the expected design requirements and can achieve arbitrary deflection of the antenna pattern in a certain angle range. At the same time, the antenna gain. 3 in the desired direction is improved. By using the design method of miniaturized antenna array and energy transmission optimization method, a near field electric field shaped antenna is designed and applied to the intelligent bookshelf system. The simulation and experimental results show that the shape effect of electric field is uniform in the near field area from the 170mm above the antenna. At the same time, through the RFID system, the number of books affixed with RFID tags in the bookshelf can be accurately identified.
【学位授予单位】：南京信息工程大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820

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