A series tunable graphene attenuator based on commercially acquired graphene nanoplatelets is presented. The attenuator is composed of a microstrip line with a gap. Graphene nanoplatelets are drop-casted in the gap. The transmission scattering parameters can be modified by a bias voltage supplied to the graphene nanoplatelets. Even though the resistance of commercially acquired graphene cannot be brought down beyond a specific value, yet the structure is designed to alter the resistance variation in a desirable range. The resulting dynamic range of transmission is comparable to a similar structure designed by lab grown graphene nanoplatelets. A prototype is fabricated and the simulated results are verified through experiments. The attenuator works from 1 GHz to 10 GHz with a maximum tunable range of up to 10 dB.

Tunable Attenuator based on commercial graphene nanoplatelets / Yasir, M.; Savi, Patrizia. - ELETTRONICO. - (2020), pp. 1-3. ((Intervento presentato al convegno 2020 International Workshop on Antenna Technology (iWAT) tenutosi a Bucharest, Romania nel 25-28 Feb. 2020 [10.1109/iWAT48004.2020.1570609841].

Tunable Attenuator based on commercial graphene nanoplatelets

M. Yasir;Patrizia Savi
2020

Abstract

A series tunable graphene attenuator based on commercially acquired graphene nanoplatelets is presented. The attenuator is composed of a microstrip line with a gap. Graphene nanoplatelets are drop-casted in the gap. The transmission scattering parameters can be modified by a bias voltage supplied to the graphene nanoplatelets. Even though the resistance of commercially acquired graphene cannot be brought down beyond a specific value, yet the structure is designed to alter the resistance variation in a desirable range. The resulting dynamic range of transmission is comparable to a similar structure designed by lab grown graphene nanoplatelets. A prototype is fabricated and the simulated results are verified through experiments. The attenuator works from 1 GHz to 10 GHz with a maximum tunable range of up to 10 dB.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2820363