High-Data-Rate Modulators Based on Graphene Transistors : Device Circuit Co-Design Proposals †
Pacheco-Sánchez, Aníbal (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Ramos-Silva, J. Noé (Instituto Politécnico Nacional)
Mavredakis, Nikolaos (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Ramírez-García, Eloy (Instituto Politécnico Nacional (Mèxic))
Jiménez Jiménez, David (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Data:	2024
Resum:	The multifunctionality feature of graphene field-effect transistors (GFETs) is exploited here to design circuit building blocks of high-data-rate modulators by using a physics-based compact model. Educated device performance projections are obtained with the experimentally calibrated model and used to choose an appropriate improved feasible GFET for these applications. Phase-shift and frequency-shift keying (PSK and FSK) modulation schemes are obtained with (Formula presented. ) (Formula presented. ) (Formula presented. ) GFET-based multifunctional circuits used alternatively in different operation modes: inverting and in-phase amplification and frequency multiplication. An adequate baseband signal applied to the transistors' input also serves to enhance the device and circuit performance reproducibility since the impact of traps is diminished. Quadrature PSK is also achieved by combining two GFET-based multifunctional circuits. This device circuit co-design proposal intends to boost the heterogeneous implementation of graphene devices with incumbent technologies into a single chip: the baseband pulses can be generated with CMOS technology as a front end of line and the multifunctional GFET-based circuits as a back end of line.
Ajuts:	European Commission 881603 Agencia Estatal de Investigación PID2021-127840NB-I00 Agencia Estatal de Investigación FJC2020-046213-I
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	GFET ; Multifunction ; High-frequency ; Modulation ; PSK ; FSK ; QPSK
Publicat a:	Electronics, Vol. 13, Issue 20 (October 2024) , art. 4022, ISSN 2079-9292

DOI: 10.3390/electronics13204022

11 p, 479.5 KB

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