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The electric-field integral equation (EFIE) is widely used for analyzing electromagnetic scattering and radiation problems because of its excellent accuracy. However, the poor spectrum property of the EFIE operator results in a very slow convergence rate in an iterative solution. Calderon preconditioner is used to improve the spectrum property of the EFIE operator, leading to a fast convergent equation...
The PMCHWT formulation is widely used to analyze the scattering properties of dielectric objects because it is known to be accurate and free of interior resonance corruption. However, the poor spectrum property owing to the electric field integral equation (EFIE) operator involved in the PMCHWT formulation results in a very slow convergence rate in an iterative solution. To improve the spectrum property...
The N-Müller equations for scattering by a dielectric object are derived by preconditioning the electric-field integral equations (EFIE) and the magnetic-field integral equations (MFIE) with Calderón preconditioners. By employing the Calderón relation and the Calderón identities, it is shown that the sum of the preconditioned EFIE and MFIE equations yields the N-Müller equations, which explains...
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