This article presents a unified description of numerical methods for solving electromagnetic field problems. Traditionally, these are considered to be independent and alternative ways Maxwell’s equations or derived therefrom. However, they all projective approximations the unknown solution by known expansion basis functions with amplitude coefficients that determined using so- called method wei...

This issue of IEEE Antennas and Propagation Magazine (APM) starts with a special section "Artificial Intelligence in Electromagnetics." I am very grateful to the guest editors editorial board members APM, Prof. Randy Haupt Paolo Rocca, for proposing editing this cluster excellent articles. The topic is attracting increasing interest our community, can serve both novice expert reader scientific ...

A comprehensive treatment on complex eigenmodes is presented for general lossy traveling-wave electromagnetic structures. The per unit length propagation phase shift ( ?)-dependent eigenfrequencies ?(?) are mapped to frequency-dependent constant ?(? 0 ) a variety of Rigorous procedures compute t...

The development of technologies for the additive manufacturing, in particular metallic materials, is offering possibility producing parts with complex geometries. This opens up to using topological optimization methods design electromagnetic devices. Hence, a wide variety approaches, originally developed solid mechanics, have recently become attractive also field electromagnetics. general disti...

Absfracf-The principles of ray optics and, in more detail, some selected applications of ray techniques to electromagnetic8 are reviewed briefly. It is shown how a systematic use of matrix representation for the wavefront curvature and for its transformations simplify the handling of arbitrary pencils of rays and, consequently, the field computations. The same methods apply to complex rays whic...

The Wigner-Smith (WS) time-delay concepts have been used extensively in quantum mechanics to characterize delays experienced by particles interacting with a potential well. This article formally extends WS theory Maxwell's equations and explores its applications electromagnetics. matrix relates lossless reciprocal system's scattering frequency derivative allows for the construction of modes tha...

Boundary integral equation methods play a key role in computational electromagnetics. Here we discuss a special variant designed for the simulation of electromagnetic scattering at a non-smooth partly PEC coated dielectric object.