Author(s)

Jiahao Tian, Yongsheng Zhang, Jianxiong Zhou, Yang Huang, Qingfeng Tan and Ji Chen

Corresponding Author

Yongsheng Zhang

ABSTRACT

Sparse array can reduce the construction cost and complexity when the array size becomes large. In this paper, two types of ultra-large sparse planar antenna arrays are designed using density-tapered method. They are respectively the sparse array whose array element positions are selected at the grid point and the sparse array whose array element positions are randomly placed within the aperture range. By comparing with the uniform random plane antenna array, several important conclusions about designing the array by density tapering method are obtained. It is concluded that the performance of non-uniform density weighted array is better than that of uniform random array. The effect of array element number and sparsity on array performance is also analyzed.

KEYWORDS

Massively thinned arrays, array antenna, sidelobe control, density-tapered antenna array