Magnetic-Field Integral Equation [EM Programmer's Notebook]

Although its accuracy problems have been shown many times in the literature, the magnetic-field integral equation (MFIE), either alone or in the context of the combined-field integral equation (CFIE), is still used carelessly with the conventional discretizations. In this article, we once again demonstrate the inaccuracy of the MFIE on very simple scattering problems, whose traditional solutions with the MFIE can be extremely misleading, showing the necessity of alternative discretizations.