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天线罩的去极化效应对极化单脉冲探测的影响分析
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摘要
天线罩对雷达及天线起到保护作用的同时,也带来了去极化效应。对于电大尺寸天线罩,将天线罩各层材料视为一集合体。结合实际应用需求,利用电磁仿真工具,研究了球缺型天线罩对Ku波段极化末制导探测的影响。以一维双极化单脉冲天线为例,在不同的扫描角度下,重点分析了天线罩的去极化效应对极化单脉冲探测的和波束增益和极化纯度的影响,并给出变化规律。
The radome protects the radar and the antenna, and also brings the depolarization effect. For electrically large redome, all the layers of the radome are treated as an assembly. According to the practical applications, the impact of ball-type radome on the Ku-band polarization terminal guidance radar is studied by using the electromagnetic simulation tool. Taking the one-dimensional dual-polarized monopulse antenna as an example, the impacts of depolarization effect of the radome on the gain of sum beam and polarization purity of polarization monopulse detection are mainly analyzed at different scanning angles, and the trend of change is showed.
引文
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    2 邹艳林.电大尺寸旋转体天线罩的快速精确分析[D].西安:西安电子科技大学,2007.
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    4 孟洪福,窦文斌.入射波极化方向对毫米波天线罩瞄准误差的影响分析[J].红外与毫米波学报,2012,31(1):29-34.
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