Smart antennas based on graphene

Journal Article · Sun Sep 21 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4895739· OSTI ID:22306011

Aldrigo, Martino; Dragoman, Mircea ^[1]; Dragoman, Daniela ^[2]

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1. National Institute for Research and Development in Microtechnology (IMT), P.O. Box 38-160, 023573 Bucharest (Romania)
2. Physics Faculty, University of Bucharest, P.O. Box MG-11, 077125 Bucharest (Romania)

We report two configurations of smart graphene antennas, in which either the radiation pattern of the antenna or the backscattering of the periodic metallic arrays is controlled by DC biases that induce metal-insulator reversible transitions of graphene monolayers. Such a transition from a high surface resistance (no bias) to a low surface resistance state (finite bias voltage) causes the radiation pattern of metallic antennas backed with graphene to change dramatically, from omnidirectional to broadside. Moreover, reflectarrays enhance the backscattered field due to the same metal-dielectric transition.

• OSTI ID: 22306011
• Journal Information: Journal of Applied Physics, Vol. 116, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANTENNAS
BACKSCATTERING
CONFIGURATION
DIELECTRIC MATERIALS
ELECTRIC POTENTIAL
GRAPHENE
METALS
NANOSTRUCTURES
NANOTECHNOLOGY
PERIODICITY
SURFACES