DOA with linear array antennas based on MoM

Direction estimation of signal of interest has been an important issue in radar and communication system. Generally, DOA(Direction Of Arrival) methods have been researched in the field of signal processing with ideal array sensors. However, there are some problems in array antennas such as the input signal distortions in amplitude and phase, due to the mutual coupling between array elements. Therefore, the compensation techniques of mutual coupling effects in the array antenna are required for the accurate estimation of DOA. In this paper, we propose a new method of the compensation of the mutual coupling effects for the DOA estimation in the dipole array antenna by using the method of moment (MoM). Also, the proposed method is applied to the estimation of azimuth (Ф) and elevation (θ) angles using uniformly linear dipole array under noisy environments.