Frequency selective surfaces (FSSs) have been used to control and shape electromagnetic
waves. Previous design approaches use complex geometries that are challenging to …

Traditional time-domain finite-element and spectral-element methods are known to suffer
from the so-called low-frequency breakdown problem, where the system matrix can become …

A spurious-free domain decomposition method (DDM) based on a nonconforming
tetrahedron–hexahedron mesh is proposed to solve 3-D Maxwell's eigenvalue problems …

Two mixed spectral-element methods (MSEMs) are proposed to solve Maxwell's eigenvalue
problems with Bloch (Floquet) periodic and open resonators to remove the dc spurious …

The finite-element method (FEM) is applied for modal analysis of ferrite-loaded spherical
resonators. To improve the efficiency of the numerical calculations, the body-of-revolution …

A novel Green's function-free characteristic modes formulation is introduced in this work. The
desired impedance or admittance matrix is obtained utilizing and appropriately modifying …

Combining the traditional mortar-element method (MEM) and the tree–cotree technique, we
present a mixed MEM (MMEM) based on a hybrid mesh to solve 3-D Maxwell's eigenvalue …

In this work, we present a rigorous full-wave eigenanalysis for the study of nanoantennas
operating at both terahertz (THz)(0.1–10 THz), and infrared/optical (10–750 THz) frequency …

Combining the traditional Nitsche's method (NM) and Gauss' law, we propose a mixed
Nitsche's method (MNM) based on a hybrid tetrahedron–hexahedron mesh. With this …

This work aims at the establishment of a rigorous full-wave eigenmode analysis technique
based on a finite element scheme for the study of terahertz (THz) or photonic/optical …