Fig. 5
From: Scalable high performance radio frequency electronics based on large domain bilayer MoS2

Gigahertz MoS2 frequency mixer on rigid and flexible substrates. a Circuit schematic of MoS2 FET-based RF mixer. b Output frequency spectrum of the mixer on rigid substrates with fRF = 1.5 GHz, PRF = 2 dBm and fLO = 1.4 GHz, PLO = 9 dBm. c Conversion gain as a function of LO power for the demonstrated mixer on rigid substrates. fRF = 1.5 GHz, PRF = 2 dBm, and fLO = 1.4 GHz. d Small-signal current gain |h21| (blue open diamonds) and unilateral power gain U (magenta open diamonds) versus frequency for device on polyimide with gate length of 300 nm. The extrinsic fT and fmax are 4 and 9 GHz, respectively. e Output frequency spectrum of the mixer on flexible substrates. fRF = 1.5 GHz, PRF = 9 dBm and fLO = 1.4 GHz, PLO = 9 dBm. f Conversion gain as a function of LO power for the demonstrated mixer on flexible substrates. fRF = 1.5 GHz, PRF = 9 dBm, and fLO = 1.4 GHz. Inset shows a photograph of MoS2 circuits on flexible substrates