TY - JOUR
T1 - Robust FDTD Modeling of Graphene-Based Conductive Materials with Transient Features for Advanced Antenna Applications
AU - Cano, Pablo H.Zapata
AU - Amanatiadis, Stamatios
AU - Zaharis, Zaharias D.
AU - Yioultsis, Traianos V.
AU - Lazaridis, Pavlos I.
AU - Kantartzis, Nikolaos V.
N1 - Funding Information:
This research was supported by the European Union, through the Horizon 2020 Marie Skłodowska-Curie Innovative Training Networks Programme “Mobility and Training for beyond 5G Ecosystems (MOTOR5G)” under grant agreement No. 861219.
Publisher Copyright:
© 2023 by the authors.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - The accurate modeling of frequency-dispersive materials is a challenging task, especially when a scheme with a transient nature is utilized, as it is the case of the finite-difference time-domain method. In this work, a novel implementation for the modeling of graphene-oriented dispersive materials via the piecewise linear recursive convolution scheme, is introduced, while the time-varying conductivity feature is, additionally, launched. The proposed algorithm is employed to design a reduced graphene-oxide antenna operating at (Formula presented.) GHz. The transient response to graphene’s conductivity variations is thoroughly studied and a strategy to enhance the antenna performance by exploiting the time-varying graphene oxide is proposed. Finally, the use of the featured antenna for modern sensing applications is demonstrated through the real-time monitoring of voltage variation.
AB - The accurate modeling of frequency-dispersive materials is a challenging task, especially when a scheme with a transient nature is utilized, as it is the case of the finite-difference time-domain method. In this work, a novel implementation for the modeling of graphene-oriented dispersive materials via the piecewise linear recursive convolution scheme, is introduced, while the time-varying conductivity feature is, additionally, launched. The proposed algorithm is employed to design a reduced graphene-oxide antenna operating at (Formula presented.) GHz. The transient response to graphene’s conductivity variations is thoroughly studied and a strategy to enhance the antenna performance by exploiting the time-varying graphene oxide is proposed. Finally, the use of the featured antenna for modern sensing applications is demonstrated through the real-time monitoring of voltage variation.
KW - FDTD methods
KW - gas sensing
KW - graphene
KW - graphene oxide antenna
KW - transient phenomena
UR - http://www.scopus.com/inward/record.url?scp=85147678449&partnerID=8YFLogxK
U2 - 10.3390/nano13030384
DO - 10.3390/nano13030384
M3 - Article
AN - SCOPUS:85147678449
VL - 13
JO - Nanomaterials
JF - Nanomaterials
SN - 2079-4991
IS - 3
M1 - 384
ER -
