Algorithm to Achieve a Radiation Pattern without Sidelobes

Abstract

This paper describes a procedure based on equations to null-steering to choose the weights required for a linear antenna array generates a radiation pattern with a main lobe and no side lobes, where the main beam is in the direction of the desired signal. This paper uses the null canceller equation. The equations are related to a weight vector, so that the weights are optimized in three adjustment process. The directions of the nulls are selected so that the side lobes are reduced and virtually nonexistent (to less than 5% of full). This procedure is proposed as an alternative to using the techniques of adaptive beamforming. In addition the results are compared with other beam-forming technique like minimum variance distortionless response (MVDR).