2000 character limit reached
Improved Discretization of the Full First-Order Magnetic Field Integral Equation (2010.07351v3)
Published 14 Oct 2020 in math.NA, cs.NA, and physics.comp-ph
Abstract: The inaccuracy of the classical magnetic field integral equation (MFIE) is a long-studied problem. We investigate one of the potential approaches to solve the accuracy problem: higher-order discretization schemes. While these are able to offer increased accuracy, we demonstrate that the accuracy problem may still be present. We propose an advanced scheme based on a weak-form discretization of the identity operator which is able to improve the high-frequency MFIE accuracy considerably - without any significant increase in computational effort or complexity.