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Preconditioned conjugate gradient methods for solving electromagnetic problems

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2 Author(s)
Kas, A. ; Boeing Aerospace Co., Seattle, WA, USA ; Yip, E.

It is shown that appropriately chosen preconditioners can significantly improve the convergence rate of the conjugate gradient (CG) algorithm as applied to electromagnetic problems. Preconditioners are constructed for the problems of scattering from frequency selective surfaces and scattering from infinite cylinders.

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Antennas and Propagation, IEEE Transactions on  (Volume:35 ,  Issue: 2 )