Method of moments analysis for antenna arrays with optimum memory and time consumption

Abstract

For some applications, single element antennas are unable to meet the gain or radiation pattern requirements.Combining several antenna elements in an array is a possible solution.In order to get accurate analysis of the antenna arrays, full wave analysis techniques such as the method of moments (MoM), the finite difference time domain (FDTD), etc are required.Unfortunately, these methods are heavy computational methods that consume long time and large computational resources.Even with the appearance of the high performance parallel processing resources, the computational time and memory usage still large due to the nature of the problem.So, in this paper, the MoM is chosen to analyze large problems such as antenna arrays taking into consideration the reduction of its needed computational resources and time consuming.The MoM is a well-established and an accurate full wave analysis method.The MoM is applied to solve the electric field integral equation (EFIE) on conducting objects with the use of RWG basis function that is used with triangular segmentation of the scatterer surface.The proposed procedure is to decompose the computational domain into subdomains taking interaction between domains iteratevly until steady state is noticed.The proposed procedure minimizes the time and memory consumption greatly