用于24ghz车载毫米波雷达的低旁瓣RCS减小微带天线阵列

Meng Guo, Wei Wang, Jing Wang, Yuchen Tong
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引用次数: 1

摘要

在车载毫米波雷达应用过程中,包络信号会在保险杠和雷达之间不断反射,导致对到达方向(DoA)的误判。因此,通过对反射包络信号的散射来提高分辨率是十分必要的。假设保险杠安装在雷达前方,那么提高分辨率的关键在于后向散射,即减小单站雷达截面(RCS)。本文提出了一种具有方形晶胞的空心基板,它与接地基板结合形成人工磁导体。值得注意的是,基于阵列,我们塑造了RCS减少的空部分,也用于低副瓣。
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Low Side-lobe, RCS Reduction Microstrip Antenna Array for 24 GHz Vehicle Millimetre Wave Radar
During the vehicle millimeter-wave radar application, the envelope signal would be continuously reflected between the bumper and radar, which causes the misjudgment in the direction of arrival (DoA). Thereby it is essential to improve the resolution through scattering the reflected envelope signal. Assuming the bumper installed in front of the radar, then the key of resolution enhancement resides in the backward scattering, or to say, the monostatic radar cross-section (RCS) reduction. This paper presents a hollow substrate with square unit cells, which form an artificial magnetic conductor (AMC) combining with the grounded substrate. Notably based on the array, we shaped the empty part for RCS reduction, also for low side-lobe.
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