Journal
JOURNAL OF APPLIED PHYSICS
Volume 116, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4895739
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Funding
- European Commission via FP 7 NANO RF [318352]
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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. (C) 2014 AIP Publishing LLC.
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