Scattering of 2-D conducting concave object by MoM matrix decomposition technique

Recently, fast computational methods based on directly thinning the method-of-moments (MoM) matrix have been introduced. In this paper, we propose a simple matrix decomposition technique, based on the concept of the measured equation of invariance (MEI), to thin the MoM matrix numerically. This technique is referred to as matrix decomposition by MEI (MDMEI). Some effort is required to add MDMEI to any of a variety of MoM programs for electromagnetic problems, such as electrostatic problems, wire antennas, and 2-D conducting object scattering. However, in this paper, we only show the results of a 2-D conducting concave object scattering under a plane-wave incidence. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 25: 149–152, 2000.