A hybrid finite-element finite-difference time-domain (FE/FDTD) technique for solving complex electromagnetic problems

A hybrid finite-element finite-difference time domain (FE/FDTD) technique for solving complex electromagnetic problems is presented in this letter. The method combines the computational simplicity of the structured FDTD scheme with the versatility as well as flexibility of the finite-element method (FEM) and enables us to accurately model curved geometries and those with fine features. Numerical results that illustrate the accuracy of the method are included in the letter