P-FFT Accelerated EFIE with a Novel Diagonal Perturbed ILUT Preconditioner for Electromagnetic Scattering by Conducting Objects in Half Space

<div>The convergence history of GMRES algorithms with different integral operators and preconditioners in the open elliptical cavity example. Both the top view and the front view of the open elliptical cavity are illustrated.</div>

International Journal of Antennas and Propagation

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Figure 5

Figure 5: P-FFT Accelerated EFIE with a Novel Diagonal Perturbed ILUT Preconditioner for Electromagnetic Scattering by Conducting Objects in Half Space 

Figure 5 | P-FFT Accelerated EFIE with a Novel Diagonal Perturbed ILUT Preconditioner for Electromagnetic Scattering by Conducting Objects in Half Space 