Neighbor-based condition number preprocessing technology and its application in plate-type base station antenna analysis Abstract This paper proposes a condition number preprocessing technology with physical significance. The condition number preprocessing technology based on neighbor cells fully considers the main information in the matrix elements, which can effectively accelerate the iterative convergence speed. When constructing the preconditioning factor, the action relationship between the structural units is determined from the structure rather than the matrix, which ensures that the computational complexity of constructing the preconditioning matrix is O(N). As an example, this preconditioning technology is combined with the conjugate gradient method and applied to the solution of the equations obtained by the moment method base station antenna analysis. The numerical results show the effectiveness of this method. Keywords Condition number preprocessing Conjugate gradient method Base station antenna
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