干涉综合孔径微波辐射计是利用孔径合成技术实现高分辨率的无源微波雷达成像系统,天线阵的优化设计是系统设计中的一个关键问题。文章提出了一种利用一维低冗余线性阵列构造低冗余二维天线阵列的方法,并将其设计阵列的冗余度与常规‘U’形、‘T’形阵列的冗余度进行了分析比较。分析结果表明,当天线单元数目足够多时,文中提出的阵列布局方式比常规的‘U’形、‘T’形阵列布局方式可节省11%～19%的通道数目。 Interferometric synthetic aperture microwave radiometer is the use of aperture synthesis technology to achieve high-resolution passive microwave radar imaging system, the optimal design of the antenna array is a key issue in system design. In this paper, a method of constructing a low-loss two-dimensional antenna array using a one-dimensional low-redundant linear array is proposed, and the redundancy of the designed array is compared with the redundancy of the conventional ’U’ and ’T’ arrays Analysis and comparison. The analysis shows that when the number of antenna elements is enough, the array layout proposed in this paper can save 11% ~ 19% of the number of channels compared with the conventional ’U’ and ’T’ array layouts.