A tunable microwave slot antenna based on graphene

M. Dragoman; D. Neculoiu; A.-C. Bunea; G. Deligeorgis; M. Aldrigo; D. Vasilache; A. Dinescu; G. Konstantinidis; D. Mencarelli; L. Pierantoni; M. Modreanu

doi:10.1063/1.4917564

A tunable microwave slot antenna based on graphene

M. Dragoman
, D. Neculoiu
, A.-C. Bunea
, G. Deligeorgis
, M. Aldrigo
, D. Vasilache
, A. Dinescu
, G. Konstantinidis
, D. Mencarelli
, L. Pierantoni
, M. Modreanu

Research output: Contribution to journal › Article › peer-review

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 ∼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.

Original language	Undefined/Unknown
Article number	153101
Journal	Applied Physics Letters
Volume	106
Issue number	15
DOIs	https://doi.org/10.1063/1.4917564
Publication status	Published - 13 Apr 2015

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10.1063/1.4917564

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title = "A tunable microwave slot antenna based on graphene",

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 ∼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.",

author = "M. Dragoman and D. Neculoiu and A.-C. Bunea and G. Deligeorgis and M. Aldrigo and D. Vasilache and A. Dinescu and G. Konstantinidis and D. Mencarelli and L. Pierantoni and M. Modreanu",

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AU - Dragoman, M.

AU - Neculoiu, D.

AU - Bunea, A.-C.

AU - Deligeorgis, G.

AU - Aldrigo, M.

AU - Vasilache, D.

AU - Dinescu, A.

AU - Konstantinidis, G.

AU - Mencarelli, D.

AU - Pierantoni, L.

AU - Modreanu, M.

PY - 2015/4/13

Y1 - 2015/4/13

N2 - 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 ∼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.

AB - 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 ∼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.

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VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

A tunable microwave slot antenna based on graphene

Abstract

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