改进加顶结构的甚低频发信天线阻抗特性分析

发布时间：2018-03-18 09:22

  本文选题：甚低频发射天线　切入点：功率容量　出处：《电波科学学报》2014年04期 　论文类型：期刊论文

【摘要】：针对甚低频发射天线输入电抗高、输入电阻小而导致的天线Q值高、带宽窄、输入功率受限、天线系统效率低等问题,研究了伞型和T型甚低频发射天线的顶负载在不同电气连接方式下的天线输入阻抗,提出在不改变天线总体结构的情况下,改变顶负载电气连接方式可优化天线的输入阻抗的方法.计算结果和理论分析均表明,优化后的天线顶负载连接方式可降低甚低频发射天线的输入容抗、提高天线的输入电阻,从而可提高天线系统效率和功率容量、增加天线带宽,对改善甚低频发射天线性能和提高天线电气工作安全性具有重要意义.
[Abstract]:Aiming at the problems of high input reactance, low input resistance, high Q value, narrow band width, limited input power, low efficiency of antenna system, etc. The input impedance of the top load of the Umbrella and T-type VLF transmitting antennas under different electrical connection modes is studied. It is proposed that the antenna structure should not be changed. The input impedance of the antenna can be optimized by changing the electrical connection mode of the top load. The results of calculation and theoretical analysis show that the optimized connection mode of the top load of the antenna can reduce the input capacitance reactance of the very low frequency transmitting antenna and increase the input resistance of the antenna. Therefore, it can improve the efficiency and power capacity of antenna system, increase the bandwidth of antenna, improve the performance of very low frequency transmitting antenna and improve the safety of antenna electrical operation.
【作者单位】： 海军工程大学电子工程学院;
【分类号】：TN827.1
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本文编号：1628984