... potential A , with the Coulomb gauge, and the electric scalar potential φ, so that the electric field E can be expressed as: Equation 1 where the magnetic vector potential A is given by the superposition integral Equation 2 In these expressions, J is the current density...

... and diffusion coefficients as functions of the electric field. The integral‐differential equations derived by means of the above mentioned method are numerically solved using a combination of spherical harmonics functions and finite‐difference operators. The Kane model for the electron band structure is assumed...

... major parts: parametric (CAD) pre/post‐processor, transient electric field (FEM) solver and a numerical optimization program. Figure 3 shows its flow‐chart. The initial model is prepared using geometric data, material properties, excitations and boundary conditions. The optimization variables...

...Jarmila Dedkova; Libor Dedek; Juraj Valsa A new finite element method (FEM) approach is used to evaluate transient electric field based on a surge wave in a dissipative open region. Instead of the solution of the basic equations in the time domain, the Laplace transform inversion is used to model...