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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2017-10-25
Terahertz Graphene-Based Reconfigurable Patch Antenna
By
Mohamed Karim Azizi,

    Dr. Mohamed Karim Azizi

    Higher Institute of Arts and Multimedia

    University of Manouba

    Tunisia

    Homepage

Mohamed Amin Ksiksi,

    Dr. Mohamed Amin Ksiksi

    Unit of Research Circuits and Electronics Systems High Frequency, Faculty of Science

    University El Manar

    Tunisia

    Homepage

Hosni Ajlani,

    Dr. Hosni Ajlani

    Department of Physics

    University of Tunis El Manar

    Tunisia

    Homepage

Ali Gharsallah

    Professor Ali Gharsallah

    Faculty of Sciences of Tunis

    University of Tunis El Manar

    Tunisie

    Homepage

Progress In Electromagnetics Research Letters, Vol. 71, 69-76, 2017
doi:10.2528/PIERL17081402 | Google Scholar

Abstract
The radiation properties of a copper-patch antenna designed for resonating at the frequency of 0.7 THz, which is used in aerospace applications, is presented. These properties are then compared to those of a graphene-patch antenna presenting the same dimensions. We show how the use of graphene, as a tunable material, allows to dynamically modify the frequency of operation of the antenna as well as its radiation pattern. Our results show that the return loss peak reaches -29 dB, at the operating frequency, which is almost twice the value obtained with the copper patch. This increase in the return loss peak is also accompanied by an improvement in the gain of the antenna from 5.73 dB in the case of the copper patch to 7.16 dB in the case of graphene. We focus our interest on how the reconfigurable radiation properties of the graphene-patch antenna are directly related to the graphene surface conductivity.
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Citation
Mohamed Karim Azizi, Mohamed Amin Ksiksi, Hosni Ajlani, and Ali Gharsallah, "Terahertz Graphene-Based Reconfigurable Patch Antenna," Progress In Electromagnetics Research Letters, Vol. 71, 69-76, 2017.
doi:10.2528/PIERL17081402
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