相控阵天线在近场聚焦中的研究与应用

发布时间：2018-05-05 14:56

本文选题：相控阵 + 近场聚焦天线　；参考：《电子科技大学》2017年硕士论文

【摘要】：相控阵天线在军事领域、天文学领域和现代通信系统中均有广泛应用,这些系统均重点考察相控阵天线的远场特性。近期,相控阵天线在近场辐射的应用也逐渐受到了重视。而近场聚焦天线可以把电磁能量像透镜一样聚焦到近场的任意一点,减少能量在空间中的浪费。随着工业通信的发展及人们对电磁污染越来越重视,近场聚焦天线越来越重要。本论文开展了相控阵天线在近场聚焦中的研究与应用这一课题。论文主要内容如下:首先,本文简明扼要地介绍了有关聚焦阵天线的研究背景、意义及本课题在国内外的研究发展概况。同时,详细阐述了相控阵的基本原理以及传统近场聚焦阵天线的实现方法,并引出了基于可重构天线单元的新型近场聚焦阵天线,介绍了该种思想的优势。其次,设计了4×4、6×6及8×8的聚焦阵天线,详细给出了新型近场聚焦阵天线仿真模型的设计过程。这些模型均采用了方向图可重构天线单元,并与传统聚焦阵天线的聚焦性能作对比,结果表明聚焦阵天线规模越大,新型聚焦阵的聚焦增益比传统聚焦阵的聚焦增益越大,充分证明了新型聚焦阵天线的优势。第三,本文选取6×6新型近场聚焦阵天线进行加工测试,测试结果与仿真结果相吻合,证明了将可重构天线单元与传统近场聚焦阵天线相结合的可行性。
[Abstract]:Phased array antennas are widely used in the field of military, astronomy and modern communication systems. These systems all focus on the far field characteristics of phased array antennas. In the near future, the application of phased array antennas in near field radiation has also been paid more attention. One point is to reduce the waste of energy in space. With the development of industrial communication and more and more attention to electromagnetic pollution, the near-field focusing antenna is becoming more and more important. This paper has carried out the research and application of phased array antenna in the near field focusing. The main contents of this paper are as follows: first, this paper briefly introduces the focus on focus. At the same time, the basic principle of the phased array and the implementation of the traditional near field focused array antenna are described in detail, and a new near field focused array antenna based on reconfigurable antenna element is introduced, and the advantages of this idea are introduced. Secondly, 4 x 4,6 x 6 is designed. And 8 x 8 focusing array antenna, the design process of the new near field focused array antenna simulation model is given in detail. These models all use the directional image reconfigurable antenna element, and compare with the focusing performance of the traditional focusing array antenna. The results show that the larger the size of the focusing array antenna, the focusing gain of the new focusing array is more than the traditional focusing array. The bigger Jiao Zengyi is, it fully proves the advantages of the new focusing array antenna. Third, this paper selects 6 * 6 new near field focused array antennas for processing and testing. The test results coincide with the simulation results, which proves the feasibility of combining the reconfigurable antenna element with the traditional near field focusing array antenna.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN821.8

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