This paper presents the design of a graphenebased electronically tunable microstrip attenuator operating at the frequency of 5 GHz. The use of graphene as a variable resistor is discussed, and the modeling 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 fairly good conductor to 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, thus changing the insertion loss of the microstrip attenuator
Graphene-based electronically tunable microstrip attenuator / Pierantoni, Luca; Mencarelli, Davide; Bozzi, Maurizio; Moro, Riccardo; Bellucci, Stefano. - STAMPA. - (2014), pp. 1-3. (Intervento presentato al convegno International Microwave Symposium (IMS) 2014 tenutosi a Tampa, Florida nel June 1-6, 2014) [10.1109/MWSYM.2014.6848645].
Graphene-based electronically tunable microstrip attenuator
PIERANTONI, Luca;MENCARELLI, Davide;
2014-01-01
Abstract
This paper presents the design of a graphenebased electronically tunable microstrip attenuator operating at the frequency of 5 GHz. The use of graphene as a variable resistor is discussed, and the modeling 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 fairly good conductor to 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, thus changing the insertion loss of the microstrip attenuatorI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
