A tunable microwave slot antenna based on graphene
Dragoman, Mircea; Neculoiu, Dan; Bunea, Alina-Cristina; Deligeorgis, George; Aldrigo, Martino; Vasilache, D.; Dinescu, A.; Konstantinidis, George; Mencarelli, Davide; Pierantoni, Luca; Modreanu, M.
Date:
2015
Copyright:
© 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Dragoman, M., Neculoiu, D., Bunea, A.-C., Deligeorgis, G., Aldrigo, M., Vasilache, D., Dinescu, A., Konstantinidis, G., Mencarelli, D., Pierantoni, L. and Modreanu, M. (2015) 'A tunable microwave slot antenna based on graphene', Applied Physics Letters, 106(15), pp. 153101 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.4917564.
Citation:
Dragoman, M., Neculoiu, D., Bunea, A.-C., Deligeorgis, G., Aldrigo, M., Vasilache, D., Dinescu, A., Konstantinidis, G., Mencarelli, D., Pierantoni, L. and Modreanu, M. (2015) 'A tunable microwave slot antenna based on graphene', Applied Physics Letters, 106(15), pp. 153101.
Abstract:
The paper presents the experimental and modeling results of a microwave slot antenna in a coplanar configuration based on graphene. The antennas are fabricated on a 4 in. high-resistivity Si wafer, with a similar to 300 nm SiO2 layer grown through thermal oxidation. A CVD grown graphene layer is transferred on the SiO2. The paper shows that the reflection parameter of the antenna can be tuned by a DC voltage. 2D radiation patterns at various frequencies in the X band (8-12 GHz) are then presented using as antenna backside a microwave absorbent and a metalized surface. Although the radiation efficiency is lower than a metallic antenna, the graphene antenna is a wideband antenna while the metal antennas with the same geometry and working at the same frequencies are narrowband. (c) 2015 AIP Publishing LLC.
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