Ricerc@Sapienza

This paper deals with the application of the recently developed artificial material single layer method to efficiently model a thin conductive anisotropic material using commercial software tools based on the finite element method. In the present work the method is applied to the prediction of the magnetic field in an electric vehicle made with metal or carbon fiber reinforced polymer (CFRP) bodyshell and equipped with a stationary wireless power transfer system. Simple tests are presented to show the performance of the method.

This paper deals with the numerical evaluation of the magnetic field emitted by a wireless power system (WPT) in an electric
vehicle (EV). The numerical investigation is carried out using a finite element method (FEM) code with a transition boundary
condition (TBC) to model conductive materials. First, the TBC has been validated by comparison with the exact solution in
simple computational domains with conductive panels at frequencies used in WPT automotive. Then, the FEM with TBC has

This paper deals with the numerical evaluation of the magnetic field emitted by a wireless power system (WPT) in an electric vehicle (EV). The numerical investigation is carried out using a finite element method (FEM) code with a transition boundary condition (TBC) to model conductive materials. First, the TBC has been validated by comparison with the exact solution in simple computational domains with conductive panels at frequencies used in WPT automotive.

In this contribution, we describe the design and the radiation features of a dual-mode operation low-profile, low-cost, wideband antenna. The structure is made by an annular, 2-D radially periodic, leaky-wave antenna enabling the generation of both high-gain beams in the far-field and of nondiffracting waves within the near-field radiative region. This is obtained through the generation of a fast backward spatial harmonic supported by a metal-strip grating placed on a grounded dielectric slab.

We propose a compact circularly polarized series-fed patch array with enhanced radiation performance at S -band. To our best knowledge, no similar single-layer structure has been designed, measured, and reported in the literature with equivalent radiation performances in terms of reduced sidelobe level (SLL) and aperture efficiency as well as compactness and simplicity. The planar array consists of a 50- Omega microstrip single feed point, offering uniform and efficient excitation of all its elements that enable a broadside beam with high-gain and low sidelobes.