Fig. 6: Performance figures of merit for the proposed VO2-based sensor.
From: Millimeter-wave to near-terahertz sensors based on reversible insulator-to-metal transition in VO2
a DC and frequency responsivity due to the shift in the IMT threshold voltage for the mentioned configurations based on the emitted power from the first port. The error bars represent the standard deviation according to repetitive runs of measurements (at least 100 cycles for DC responsivity measurements and thousands of cycles for the oscillator response). b Noise equivalent power of the CPW devices at very low frequencies, at the minimum measured signal (1 μW), c Allan deviation calculation on the frequency vs time measurements of the oscillator over a long duration of time, no external power applied.
