A review of sparse design methods for large-scale planar arrays

According to the current broadband and lightweight requirements of spaceborne phased array and the characteristics of ultra dense antenna array, the research on largescale planar sparse antenna array can effectively simplify the channel design, reduce the difficulty of heat dissipation, and have a certain sidelobe suppression effect. Firstly, this paper introduces the basic principle of antenna array sparse optimization technology; Then several commonly used sparse optimization techniques for largescale planar arrays are reviewed, including deterministic sparse methods, stochastic sparse methods and hybrid sparse optimization methods; Finally, the advantages and disadvantages of these sparse array optimization techniques are summarized, and their future development is prospected.