Abstract: This study presents a new technique for the linear array antenna with suggested nulls and beam-forming with multi-lobe characteristics is offered. Using the least mean square algorithm and the linear array to achieve multi-lobe pattern with prescribed nulls. Verifying the validity of the proposed technique through the simulation of Smart Antenna System (SAS) by considering multiple paths with multiple directions of arrival signals. The simulations results confirms that the proposed SAS has the facility to separate the desired signal from interferes signals by adjusting beams directions towards the desired signals and nulls are facing the interferers.