Abstract
The static linearity performance metrics of the graphene-based field effect transistor (GFET) transconductor are studied and modeled. Closed expressions are proposed for second- and third-order harmonic distortion (HD2, HD3), second-and third-order intermodulation distortion (ΔIM2, ΔIM3), and secondand third-order intercept points (AIIP2, AIIP3). The expressions are validated through large-signal simulations using a GFET VerilogA analytical model and a commercial circuit simulator. The proposed expressions can be used during circuit design to predict the GFET biasing conditions at which linearity requirements are met.
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