A review is presented of the most effective methods for the computation of Sommerfeld
integral tails. Such integrals, which are often oscillatory, singular and divergent, commonly …

Metasurfaces (MTSs) constitute a class of thin metamaterials used for controlling plane
waves and surface waves (SWs). At microwave frequencies, they are constituted by a …

An important extension of the two-level discrete complex image method is proposed to
eliminate any concerns on and shortcomings of the approximations of the spatial-domain …

This paper presents a novel type of basis functions, whose spectral-and space-domain
properties can be exploited for the efficient method of moments (MoM) analysis of planar …

This paper deals with the mathematical expressions called Sommerfeld integrals. Introduced
by A. Sommerfeld in 1909, they are mathematically equivalent to inverse Hankel transforms …

The classic weighted averages (WA) algorithm for the evaluation of Sommerfeld-like
integrals is reviewed and reappraised. As a result, a new version of the WA algorithm, called …

Sommerfeld-integrals (SIs) are ubiquitous in the analysis of problems involving antennas
and scatterers embedded in planar multilayered media. It is well known that the oscillating …

A new technique is presented for the numerical derivation of closed-form expressions of
spatial-domain Green's functions for multilayered media. In the new technique, the spectral …

Wind turbines, because of their height and localization, are frequently subject to direct
lightning strikes. Thus, the investigation on the performance of their grounding system is of …

Accurate tower models for fast transients are essential for the insulation design of overhead
lines, since lightning may produce temporary or even permanent faults. The aim of the work …