Computational Electromagnetics: A Miscellany

Abstract

The paper presents a miscellany of unorthodox and, in some cases, paradoxical or controversial items related to computational and applied electromagnetics. The topics include a definition of the magnetic source field via a line integral, losses in electric power transmission vs. losses in photonics, homogenization of periodic electromagnetic structures, spurious modes, models of plasmonic media, and more. It is hoped that this assortment of subjects will be of interest to a broad audience of scientists and engineers.

An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification

“…These functions are further transformed into a matrix equation [14]. Theoretically, the smaller the size of the division unit is, the closer the finite element numerical solution is to the real solution of the physical problem [15]. However, in practical applications, the time required to solve the finite element equation increases sharply with increasing matrix order n [16].…”