棒形天线耦合雷电电磁波及抑制方法

发布时间：2019-07-08 15:29

【摘要】：针对棒形天线耦合雷电电磁波信号的问题,利用实验和理论相结合的方法,建立了棒形天线接收雷电电磁波信号的等效电路,分析了雷电电磁波信号的频谱及能量分布规律,提出了利用暂态抑制二极管器件(Transient Voltage Suppressor,TVS)抑制棒形天线耦合雷电电磁波能量的重复方法.实验表明:在馈电端并联TVS管后,从棒形天线S11曲线得出的天线中心频率及带宽略变小;馈电端并联TVS管可有效地抑制棒形天线耦合雷电电磁波电压的幅值,在馈电端并联两种不同型号的TVS管,棒形天线耦合雷电电磁波电压的幅值可分别被抑制到6.8V至7V以内.实验结果和理论分析结论基本吻合.研究结果对棒形天线耦合雷电电磁波能量的抑制方法具有一定的指导意义.
[Abstract]:Aiming at the problem of coupling the lightning electromagnetic wave signal with the rod-shaped antenna, using the method of combining the experiment and the theory, a rod-shaped antenna is established to receive the equivalent circuit of the lightning electromagnetic wave signal, the frequency spectrum and the energy distribution rule of the lightning electromagnetic wave signal are analyzed, A method of using transient voltage supply (TVS) to suppress the energy of a rod-shaped antenna coupled with lightning electromagnetic wave is proposed. The experiment shows that the center frequency and the bandwidth of the antenna are slightly smaller from the curve of the rod-shaped antenna S11 after the power feeding terminal is connected in parallel with the TVS tube, the parallel TVS tube of the feeding end can effectively inhibit the amplitude of the coupling lightning electromagnetic wave voltage of the rod-shaped antenna, and the two different types of TVS tubes are connected in parallel at the feeding end, The amplitude of the coupling lightning electromagnetic wave voltage of the rod-shaped antenna can be suppressed to be within the range of 6.8 V to 7 V, respectively. The experimental results and the theoretical analysis conclusions are in good agreement. The results of the study are of great significance to the suppression of the coupling of the rod-shaped antenna with the energy of the lightning electromagnetic wave.
【作者单位】：南京信息工程大学
【基金】：国家自然科学基金项目(批准号:41075025)
【分类号】：TN823

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