Eigen-approach for wide-band interference suppression

This paper presents a new synthesis technique of an antenna array pattern for multiple wide-band interference suppression. The proposed technique uses an eigen-approach to design an array pattern with arbitrary controlled multiple broad suppressed sectors by controlling the array complex element excitations. The eigen-approach determines the element complex current ratios that produce the closest perturbed pattern in the least squares sense. Numerical results show that the proposed technique can suppress multiple wide sectors in the array pattern and control the sector depths by applying an appropriate weight factor on the mean square error of the perturbed pattern in the prescribed sector intervals.