Fig. 2: Nanomechanical response to a drive modulated with a video signal at a symbol rate Rsym = 0.5 × 106 Hz.
From: A few-layer graphene nanomechanical resonator driven by multifrequency digital signals
a–d Time-averaged vector length L of the discrete symbol components Iout and Qout extracted from the output signal, plotted as a function of drive frequency fd. The standard deviation of the measurements is ≃ 0.4 mV, which is comparable to the size of the dots. e–h Reciprocal of the error vector magnitude, ε(fd), under the same conditions. Drive power at the gate is Pd = − 31 dBm (a, e), − 28 dBm (b, f), − 25 dBm (c, g), and − 22 dBm (d, h). Dots indicate measured data; solid lines are theoretical calculations. The gate voltage is \({V}_{{{{\rm{g}}}}}^{{{{\rm{dc}}}}}=13\) V in all panels. Source data are provided as a Source Data file.
