In this contribution, the electrostatic tunability of graphene is exploited in order to fabricate compact and effective microwave filters, namely field attenuators. A graphene patch of millimeter size is placed across the air gap of a discontinued microstrip-line, and tuned by means of an electrostatic bias applied by a high impedance line, that is, in turns, de-coupled from the microwave filter at center-band frequency. Results show that the filter response is strongly dependent on the external bias, and this promises not only for unprecedented performances, in terms of mass, volume and power consumption, but also for possible integration of graphene in a wide class of standard microwave device
On the use of electrostatically doped graphene: Analysis of microwave attenuators / Pierantoni, Luca; Bozzi, M.; Moro, R.; Mencarelli, Davide; Bellucci, S.. - ELETTRONICO. - (2014), pp. 1-4. (Intervento presentato al convegno 2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications, NEMO 2014 tenutosi a Pavia; Italy; nel 14 May 2014 through 16 May 2014) [10.1109/NEMO.2014.6995716].
On the use of electrostatically doped graphene: Analysis of microwave attenuators
PIERANTONI, Luca;MENCARELLI, Davide;
2014-01-01
Abstract
In this contribution, the electrostatic tunability of graphene is exploited in order to fabricate compact and effective microwave filters, namely field attenuators. A graphene patch of millimeter size is placed across the air gap of a discontinued microstrip-line, and tuned by means of an electrostatic bias applied by a high impedance line, that is, in turns, de-coupled from the microwave filter at center-band frequency. Results show that the filter response is strongly dependent on the external bias, and this promises not only for unprecedented performances, in terms of mass, volume and power consumption, but also for possible integration of graphene in a wide class of standard microwave deviceI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
