Towards the design and fabrication of graphene based flexible GHz radio receiver systems

We present the design and fabrication of high speed flexible graphene field effect transistors (GFETs) with high electron mobilities (∼8000cm
²
/V.s), hole mobilities (∼ 6600cm
²
/V.s) and record intrinsic transit frequency-f
T
of ∼32GHz. We also present the design and fabrication of the first flexible graphene based amplitude modulated (AM) radio receiver operating at 2.4GHz. This radio includes a GFET based demodulator and flexible graphite microstrip patch antenna resonating at 2.4GHz.