Open AccessDyadic Green's function of partially filled graphene‐loaded rectangular waveguides
Author(s) -
Lotfalizadeh Hamed,
GhaffariMiab Mohsen
Publication year - 2021
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/mia2.12195
Subject(s) - graphene , superposition principle , scattering , infinitesimal , dipole , green's function , materials science , mathematical analysis , conductivity , function (biology) , rayleigh scattering , physics , mathematics , optics , quantum mechanics , nanotechnology , evolutionary biology , biology
In this study, dyadic Green's functions (DGFs) for a partially filled rectangular waveguide in the presence of a graphene layer is derived in closed form using the Ohm‐Rayleigh method and the method of scattering superposition. Having DGFs of a linear medium, the response of the structure to any arbitrary current distribution can be achieved. In this work, after a brief review on governing equations for graphene conductivity, the electric fields of the structure due to infinitesimal electric dipoles are obtained using the proposed DGFs in closed form. To show the efficiency and accuracy of the proposed method, the results are compared with the simulation results of commercial software, where excellent agreement is observed.