Graphene radio: Detecting radiowaves with a single atom sheet

TL;DR

This paper demonstrates that a single-layer graphene sheet can effectively demodulate radio frequency signals across a broad spectrum, including the 2.4 GHz ISM band, using minimal power levels typical of short-range wireless communication.

Contribution

It provides the first experimental evidence of RF demodulation using a graphene monolayer embedded in a coplanar structure, showcasing its potential as a compact, high-frequency radio detector.

Findings

Effective RF demodulation at 2.4 GHz ISM band

Operates with 0 dBm input power typical of wireless devices

Broad frequency response from 100 MHz to 25 GHz

Abstract

We present the experimental evidence of RF demodulation by a graphene monolayer embedded in a coplanar structure. The demodulator was tested in the frequency range from 100 MHz to 25 GHz using amplitude modulated input signals. An input power of 0 dBm (1 mW) was used which is the typical power emitted for short range wireless communication systems, such as Bluetooth. The graphene demodulator exhibits good signal response in the frequency range associated to industrial, scientific and medical (ISM) radio band (2.4 GHz).