时域孔径瞬态辐射幅值的研究

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 Pub Date : 1900-01-01 DOI:10.1109/ISAPE.2003.1276813

Wang Xianghui, Liu Xiaolong, W. Wenbing, Jiang Yangsheng

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引用次数: 0

摘要

通过解析积分，首先得到了阶跃脉冲同步激励孔径时天线瞬态辐射的解析表达式。然后定量分析了视场振幅与矩形脉冲脉宽、孔径大小、距离和观测角度的关系。分析表明:在/spl θ / /spl ne/ 0/spl deg/范围内，随着观测角度和孔径的增大，场脉宽变宽;在/spl θ / = 0/spl deg/范围内，随着观测距离的增大，场脉宽变窄;随着观测角度的增大，视场的幅值增大，而视场的脉宽趋于窄化。

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A study on the amplitude of the aperture transient radiation in time domain

Through analytical integral, this paper first obtains the analytic representations of the transient radiation of antenna when the step pulse excites the aperture synchronously. After that it presents a quantitative analysis of relationship of the amplitude of the field to the pulse width of the rectangle pulse, the size of the aperture, the distance and the angle of the observation. The analysis indicates that the pulse duration of the field broadens as the plunge angle of the observation and the size of the aperture increases in /spl theta/ /spl ne/ 0/spl deg/, the pulse width of the field narrows as the distance of the observation increases in /spl theta/ = 0/spl deg/. The amplitude of the field augments yet the pulse width of the field tends to narrow as the plunge angle of the observation increases.

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6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003

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