Open AccessFourier transform analysis of graphene‐based multilayer structures
Author(s) -
Ardakani Hossein Hatefi,
Kashani Zahra Ghattan,
Amirkalaee Mohammad Keramat,
RashedMohassel Jalil
Publication year - 2013
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2013.0019
Subject(s) - graphene , dielectric , fourier transform , materials science , planar , transformation matrix , transformation (genetics) , boundary value problem , tensor (intrinsic definition) , electromagnetic field , mathematical analysis , computational physics , physics , computer science , geometry , mathematics , optoelectronics , classical mechanics , nanotechnology , chemistry , computer graphics (images) , kinematics , quantum mechanics , gene , biochemistry
In this study, a generic multilayer structure containing metals, dielectrics, line sources and graphene sheets is considered and analysed. The spectral domain techniques (SDTs) have been known as an efficient method for analysis of planar structures. However, since existence of graphene sheet imposes a new boundary condition, conventional SDTs cannot deal with it. Therefore a spectral‐based method is proposed by applying the two‐dimensional Fourier transform to the fields’ equations. First, a graphene sheet described by a conductivity tensor is assumed to be placed between two arbitrary dielectric layers. A generalised transformation matrix is then calculated which relates the electromagnetic fields of the top layer in terms of the ones of the bottom layer. It is shown that considering the tangential electric fields as supporting field components makes an easier analysis and results in more simplified expressions. The proposed method is evaluated through some examples of guiding and radiating structures. Some novel characteristics are observed, which are promising in providing new applications.