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Fundamentals of Method of Moments
This tutorial on Method of Moments (MoM) will present: general solution of linear operator equations; Frequency and time domain formulations; surface and volume discretizations; boundary integral equations for metallic and dielectric structures; optimal choice of test procedure; geometrical modeling of wires, metallic and plates dielectric plates; quadrilateral versus triangular meshes; wire-to-plate junctions and protrusions; as well as segmentation of
electrically large objects. Approximation of currents along wires and over the plates is also discussed. We show how accuracy and speed of MoM solution is delivered through choice of basis functions order. Basic types of excitations and their stable computation are demonstrated. We also show trade-offs in performance and robustness of direct versus iterative solutions of dense matrix equations pertinent to MoM.