Design of Unequally Spaced Antenna Arrays with Minimum Sidelobe Power via Quasi-Newton Method

In this work, design of unequally spaced antenna arrays with uniform excitation is considered. The design is based on numerical optimization of array's sidelobe power. The corresponding optimization problem is nonconvex and highly nonlinear. Therefore, we consider the Quasi-Newton method for its solving. Such an approach allows the application of versatile objective functions. This is illustrated in the design of linear and planar arrays. Resulting beam patterns exhibit high beam efficiency and low sidelobe level.