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光纤光栅色散效应对相控阵天线影响的研究 被引量:1

The Impact of Dispersion Effects on Phased-array Antennas Employing Fiber Gratings
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摘要 研究光纤光栅色散效应对基于光栅的相控阵天线的影响,该相控阵天线基于典型的离散光纤光栅阵列的实时延迟线结构。分析表明,单边带调制方式可以有效地克服色散效应对所恢复的微波信号幅度的影响。但光纤光栅色散效应对所恢复的微波信号相位的作用仍影响实时延迟线的性能,从而改变天线阵列最大辐射方向。通过选择合适的天线元之间的距离以及提高相邻通道所对应的光纤长度差可以降低光纤光栅色散效应的影响。 The dispersion effects of fiber gratings are studied for phased-array antennas,which are fed by the optical delay-line array based on a number of discrete fiber gratings.The results indicate that the time delay performance is affected greatly by the dispersion induced by the fiber gratings,even if single-sideband modulation scheme is employed.The dispersion effects can be effectively reduced by choosing a proper spacing between the array elements and an increased fiber difference of the adjacent channel.
作者 郑史烈 裘婷
出处 《微波学报》 CSCD 北大核心 2010年第2期60-63,共4页 Journal of Microwaves
关键词 光纤光栅 色散效应 相控阵天线 实时延迟线 Fiber grating Dispersion effect Phased-array antenna True-time delay
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参考文献13

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共引文献27

同被引文献6

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