EIGEN-APPROACH FOR WIDE-BAND INTERFERENCE SUPPRESSION

This paper presents a new synthesis technique of an antenna array patt ern for multiple wide-band interference suppression. The proposed tech nique 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 elemen t complex current ratios that produce the closest perturbed pattern in the least squares sense. Numerical results show that the proposed tec hnique can suppress multiple wide sectors in the array pattern and con trol the sector depths by applying an appropriate weight factor on the mean square error of the perturbed pattern in the prescribed sector i ntervals.