Category - Numerical Methods

In this article, we provide an overview of various numerical methods used in Computational Electromagnetics (CEM), with a special focus on antenna simulation methods such as FDTD, FEM, MoM, CMoM, FMM, MLFMM, FVTD, GO, GTD, UTD, PO, PTD, and DDM.

Traditional Method of Moments codes still carry geometric and numerical constraints that degrade accuracy on the antennas professionals actually design. Conformal MoM with Exact Kernel removes them.

Discover the competitive advantage of AN-SOF’s exclusive James R. Wait ground model. This guide explores how to accurately simulate LF/MF broadcast masts with radial wire ground screens, allowing for direct wire-to-ground connections, a critical feature for realistic impedance and efficiency calculations that legacy NEC-based solvers cannot match.

Validate AN-SOF numerical results against classical transmission line theory in this detailed study of a wire-over-ground-plane system. By utilizing the short-circuit and open-circuit impedance technique, we demonstrate how simulated data correlates with standard characteristic impedance formulas. This article provides a step-by-step procedure for modeling lines in the AN-SOF workspace and highlights the engine's precision in handling image theory and near-field interactions for numerical method validation.

Validate the high-precision numerical stability of AN-SOF at the extreme low-frequency limit. This article details a simulation of a series RLC circuit designed to resonate at 800 Hz, where the wavelength is 375 kilometers. By comparing the simulated current peaks against classical circuit theory formulas, we demonstrate that the AN-SOF engine maintains its accuracy even when the structure size is a minute fraction of the wavelength. This study provides a step-by-step validation of lumped-element integration and frequency-sweep stability for complex system modeling.