6533b857fe1ef96bd12b3b3d

RESEARCH PRODUCT

Graphene as a tunable resistor

Maurizio BozziStefano BellucciLuca PierantoniAntonino CataldoRiccardo MoroDavide Mencarelli

subject

Attenuator (electronics)Settore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciMaterials sciencebusiness.industryGraphenegrapheneElectrical engineeringMicrostriplaw.inventionConductorSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialilawOptoelectronicsInsertion lossResistormicrostripbusinessnanoelectronicMicrowavetuneable microwave devicesSettore CHIM/02 - Chimica FisicaVoltage

description

We present the design of a graphene-based electronically tuneable microstrip attenuator operating at a frequency of 5 GHz. The use of graphene as a variable resistor is discussed and the modelling of its electromagnetic properties at microwave frequencies is fully addressed. The design of the graphene-based attenuator is described. The structure integrates a patch of graphene, whose characteristics can range from being a fairly good conductor to a highly lossy material, depending on the applied voltage. By applying the proper voltage through two high-impedance bias lines, the surface resistivity of graphene can be modified, thereby changing the insertion loss of the microstrip attenuator.

yearjournalcountryeditionlanguage
2014-10-012014 International Semiconductor Conference (CAS)
https://doi.org/10.1109/smicnd.2014.6966380