A comparison of method of moments vs. geometrical theory of diffraction for the case of a two dimensional perfectly conducting rectangular cylinder

Includes bibliographical references (pages 106-108)A comparison between the Method of Moments and the\ud method of Self-Consistent Geometrical Theory of\ud Diffraction is presented for the case of a two dimensional\ud perfectly conducting rectangular cylinder illuminated by a\ud TE and TM plane wave. Comparisons are made for several\ud angles of incidence and scattering surface dimensions. The\ud comparisons show relatively good aggreement between the\ud Method of Moments and the method of Self-Consistent\ud Geometrical Theory of Diffraction for surface dimensions\ud of three wavelengths and greater. A comparison of the\ud solutions for EFIE, MFIE and CFIE is also included. A\ud discussion of the impedance matrix stability is provided\ud with sample data comparing EFIE, MFIE and CFIE. Impedance\ud matrix convergence and computer time considerations are\ud addressed with sample data. The software listings for all\ud programs used are included in the appendices