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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-07-10
The Performance Improvement of THz Antenna via Modeling and Characterization of Doped Graphene
By
Mohammed Taih Gatte,

    Dr. Mohammed Taih Gatte

    University Malaysia Perlis

    Malaysia

    Homepage

Ping Jack Soh,

    Dr. Ping Jack Soh

    Dept of Electrical Engineering

    KU Leuven

    Belgium

    Homepage

Hasliza A Rahim,

    Dr. Hasliza A Rahim

    School of Computer and Communication Engineering

    Universiti Malaysia Perlis (UniMAP)

    Malaysia

    Homepage

Raad Badlishah Ahmad,

    Dr. Raad Badlishah Ahmad

    School of Computer and Communication Engineering

    University Malaysia Perlis (UniMAP)

    Malaysia

    Homepage

Fareq Malek

    Dr. Fareq Malek

    Department of Engineering and Information Science

    University of Wollongong in Dubai

    UAE

    Homepage

Progress In Electromagnetics Research M, Vol. 49, 21-31, 2016
doi:10.2528/PIERM16050405 | Google Scholar

Abstract
The improvement of Terahertz (THz) antenna requires efficient (nano)materials to operate within the millimeter wave and THz spectrum. In this paper, doped graphene is used to improve the performance of two types of patch antennas, a rectangular and an elliptical antenna. The surface conductivity of conventional (non-doped) graphene is first modeled prior to the design and simulation of the two graphene based antennas in an electromagnetic solver. Next, different graphene models and their corresponding surface conductivities are computed based on different bias voltages or chemical doping. These configurations are then benchmarked against a similar antenna based on conventional metallic (copper) conductor to quantify their levels of performance improvement. The graphene based antennas showed significant improvements for most parameters of antenna than that of the conventional antenna. Besides that, the higher chemical potentials resulting from higher biasing voltages also resulted in this trend. Finally, the elliptical patch graphene antenna indicated better reflection performance, radiation efficiency and gain than a rectangular patch operating at the same resonant frequency.
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Citation
Mohammed Taih Gatte, Ping Jack Soh, Hasliza A Rahim, Raad Badlishah Ahmad, and Fareq Malek, "The Performance Improvement of THz Antenna via Modeling and Characterization of Doped Graphene," Progress In Electromagnetics Research M, Vol. 49, 21-31, 2016.
doi:10.2528/PIERM16050405
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