Robust FDTD Modeling of Graphene-Based Conductive Materials with Transient Features for Advanced Antenna Applications

Pablo H.Zapata Cano, Stamatios Amanatiadis, Zaharias D. Zaharis, Traianos V. Yioultsis, Pavlos I. Lazaridis, Nikolaos V. Kantartzis

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Article number384
Number of pages12
JournalNanomaterials
Volume13
Issue number3
Early online date18 Jan 2023
DOIs
Publication statusPublished - 1 Feb 2023

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