Abstract: The radiation performance and low scattering property of a linear array are designed by adjusting the element spacing of a uniform array in this paper. An 1×8 patch array antenna is designed using both this novel technology and the conventional one. Compared with traditional array design, the inband and outband RCS spots of strong scattering are considerably reduced, and the proposed method makes be at the status that it scatters with low level for most incident angles. The results show that the proposed method is feasible and effective for designing the antenna array.