Accurate computation of the impedance elements of the magnetic-field integral equation with RWG basis functions through field-domain and source-domain integral swapping

We present a new strategy to compute the impedance elements of the Magnetic-Field Integral Equation (MFIE) formulation in Method of Moments (MoM) with a discretization of low-order divergence-conforming basis functions (RWG). The impedance matrix elements are accurately computed by swapping the inner- and outer-integrals in the accurate computation of a MoM–MFIE discretization with low-order curl-conforming basis functions (nxRWG). © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 709–712, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22228