Broad nulls rectangular array pattern synthesis with derivative constraints orthogonal method

A method for broad null rectangular array pattern synthesis, which combines convolution of two perpendicular linear arrays with derivative constraints Gram-Schmidt orthogonal method for each linear array synthesis, is proposed. Because beam patterns derive from Fourier transforms of distributions in space, the distribution to produce the product of two simpler patterns is the convolution of the simpler distributions. A desired rectangular array pattern can be synthesized through multiplication of two perpendicular linear array patterns. At the same time, the relatively simple and general derivative constraints Gram-Schmidt orthogonal method is applied for linear array synthesis to implement broad null flexible and to reduce the amount of computation further.