Antenna Arrays Design Based on Hyperuniform Disordered Structure

Antenna arrays with aperiodic element distribution are often used to suppress grating lobes and increase scanning range, particularly when the arrays interelement spacing is larger than half a wavelength. In this paper, a new antenna array design approach, based on the concept of hyperuniform disorder is presented, in order to suppress the grating lobes and achieve low sidelobe level values over a wide bandwidth. Hyperuniform disordered structures are exotic states of matter that lie between the disordered and ordered (periodic) regime. On one hand, the hyperuniform disordered antenna array has similar properties to that of aperiodic antenna array, regarding the prediction of the radiation properties and especially the sidelobe level values. On the other hand, it can achieve grating lobe suppression like an a periodic array for a wide bandwidth during scanning. The antenna array based on the hyperuniform disordered distribution can be regarded as an extension of the periodic antenna array, in the sense that the former offers a wider bandwidth than the latter, due to the connection between the structure factor formula of a hyperuniform disordered structure and the antenna array formula.