Mechanical Rotating Arrays for Sidelobe Suppression
Mechanical Rotating Arrays for Sidelobe Suppression
复制标题
用于旁瓣抑制的机械旋转阵列
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Y. E. Wang
中科院分区：
文献类型：
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作者：
J. Diao;M. Hedayati;R. Tok;Y. E. Wang
提出了一种利用阵列的快速机械旋转，在短时间内对旋转时变辐射方向图进行积分的低旁瓣电平的新方法。从0.87元间距的4元圆极化阵列天线的实验测量辐射方向图来看，旋转阵列的主瓣辐射方向图与非旋转阵列基本相同，而副瓣电平比非旋转阵列降低了14.2 dB。通过在旋转周期内整合接收到的信号，该技术可以潜在地应用于需要高信噪比和高频率分辨率的传感和雷达系统。
A novel approach by utilizing the fast mechanical rotation of arrays has been proposed for low sidelobe levels by integrating the rotational time-varying radiation pattern in a short time. From the experimental measured radiation pattern for a 4-element circular polarized array antenna with 0.87 element spacing, the mainlobe of the radiation pattern for the rotation array is almost the same as the non-rotation array, while the sidelobe level is decreased by 14.2 dB from the non-rotation array. This technique could be potentially applied for sensing and radar systems that require high SNR and frequency resolution by integrating the received signals within the rotation period.