Ricerc@Sapienza

A finite sum adopted for the translational Addition Theorem (AT) of the spherical vector wave functions is a key-point for addressing a well known concept regarding the classical electromagnetic scattering of an incoming wave across a generic dispositions of spheres. The AT is essential for the translation of the vector spherical wave function expressed with respect to a coordinates system toward a different reference.

PEEC
Method is a numerical technique for 3D EM modeling
Key
aspect : computation of interaction integrals
Full
wave method integration of full wave Green’s function when the
structure of interest are electrically large This is the case also of the surface
PEEC formulation
Aim
of this work to present a semi analytical approach for the computation
of full wave self interaction integrals over rectangles that occurs in the
surface integral equation based formulation

In this article, we have studied the electrostatic responseof a Polarly Radially Anisotropic (PRA) multilayer circularcylinder. It consists of different components of the permit-tivity in radial and tangential directions for each layer. Wehave considered the familiar model of quasi-static for ob-taining the polarizability and effective permittivity of thePRA multilayer circular cylinder. We also have studied thebehavior of polarizability of PRA multilayer circular cylin-der, as a function of the number of anisotropic alternatinglayers by using a numerical approach.

In this article, the polarizability of a multilayer sphere thatconsists of an alternative sequence of layers of isotropic andspherically radially anisotropic (SRA) material has been in-vestigated. Within each SRA layer, components of the ten-sor permittivity have different values in radial and tangen-tial directions. The mathematical treatment for extractingelectrostatic polarizability has been formulated in terms ofscattered potentials.

This paper introduces the interaction between an ensembleof cylinders and an inhomogeneous plane wave, which isdetermined through a rigorous theoretical approach. Thescattered electromagnetic field by an indefinite number ofinfinite circular cylinders is analyzed through an applica-tion of the generalized Vector Cylinder Harmonics (VCH)expansion.

In this paper, a new model to explain the electromagneticinteraction with a monodispersed system in sedimentationequilibrium is presented. Our approach is based on the dis-persive system as constituted by a large number of strat-ification each characterized a constant particle concentra-tion. The interaction between the electromagnetic field andthe stratified material is taken into consideration thanks tothe T-matrix approach. The concentration of these mediavaries with continuity along the stratified direction.