Analysis Of Radiating Structures Placed On
Multilayer Dielectric
Author(s)
M. Wnuk & M. Bugaj
Abstract
In this work, a solution to the problem of electromagnetic fields scattering on
periodical, limited, planar antenna structures, placed on the border of two
dielectric layers is formulated. One led out of scattering this kind of structure and
defined in its generalization for the case of antenna with a multilayered dielectric
basis. By using Galerkin’s spectral method the problem was brought to an
arrangement of algebraical equations with disposition on coefficients of the
current’s disposition on metal elements of an antenna arrangement, with regard
to disposition of field on Floquet’s harmonics. The complete transverse
dimension of an antenna was taken into account by introducing antenna’s
window functioning solution of unlimited antenna. The formalism allows the
modeling of periodical actions, dielectrics, and composite antenna arrays.
Keywords: Antenna arrays, multilayer dielectric, Green function.
1 Introduction
Antenna arrays usually consist of periodical metal structures placed on, or set in,
multilayer dielectric. Changes of size or shape of each of the antenna’s elements
allows for effective modelling of spectral characteristics of parameters of
antenna array. These changes can also be modelled by the selection of
geometrical and physical parameters of dielectric layer surface and coverage.
In the case of big transversal dimensions of antenna (100 lengths of wave)
and several dozen or more single radiating metal elements, characteristics of
antenna radiation in good approach respond to characteristics of an unlimited
antenna structure.
When the condition of fulfilling periodicality of such an antenna is fulfilled
and it is excited by a flat wave with linear and homogenize module faze, the
problem of diffraction of such a structure is brought to an analysis of a single
Keywords
Antenna arrays, multilayer dielectric, Green function.
Related Book
Other papers in this volume
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