At fixed points per wavelength, BEM solutions of the transverse-electric EFIE and the Calderón combined-field equation for a conducting cylinder suffer a frequency-growing pollution error caused by spectral aliasing of the hypersingular operator.
Onthehighfrequencybehaviorandstabilizationofapreconditionedandresonance-freeformulation
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Limitations of Nyquist Criteria in the Discretization of 2D Electromagnetic Integral Equations at High Frequency: Spectral Insights into Pollution Effects
At fixed points per wavelength, BEM solutions of the transverse-electric EFIE and the Calderón combined-field equation for a conducting cylinder suffer a frequency-growing pollution error caused by spectral aliasing of the hypersingular operator.