Comparison of CBFM-Enhanced Iterative Methods for MoM-Based Finite Antenna Array Analysis

نویسندگان

چکیده

In this article, we compare different iterative techniques enhanced by the CBFM, which are used to analyze finite arrays of disjoint antenna elements. These based on stationary-type methods (Jacobi, Gauss–Seidel, and macroblock Jacobi), nonstationary GMRES, hybrid alternating GMRES-Jacobi (AGJ) method that combines these two types. each iteration, reduced CBFM system is constructed previous iterates, solution update vector in next iteration with improved accuracy. way, convergence classical can be greatly improved. The rates computational costs CBFM-enhanced analyzed considering several MoM-based problems. GMRES-based method, employs block-Jacobi preconditioner, outperforms other when MoM matrix ill-conditioned. For well-conditioned matrices diagonal dominance due increased presence interelement coupling effects, AGJ or iterations may require smaller effort converge desired accuracy comparison approach.

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ژورنال

عنوان ژورنال: IEEE Transactions on Antennas and Propagation

سال: 2022

ISSN: ['1558-2221', '0018-926X']

DOI: https://doi.org/10.1109/tap.2021.3137484