Grating Lobe Control of Two-Way Pattern for Linear Distributed Array

A kind of method for suppressing the grating lobes (GLs) of linear distributed array pattern is proposed in this paper. The method combines the linear distributed array structure and the pattern product theorem to obtain a linear distributed array two-way pattern. The Chebyshev window is used to design the weights of the transmit array pattern to achieve ultralow GLs performance. This method reduces the GLs by 29.5 dB, which can effectively suppress the GLs compared with conventional solutions. Simulation analysis results show the feasibility and the effectiveness of the method, which will help to improve the ability of radar detection.