Abstract
Flexible and wearable communication devices together with the sensing functionality are of great importance for next-generation flexible electronics towards the applications in IoT etc. However, metals still remain to be the dominant class of materials that satisfy the requirement for antenna fabrication. But metals do not exhibit excellent sensing capabilities when compared to functional nanomaterials. Hence there is a need to develop a functional nanomaterial-based antenna that serves the dual purpose of sensing and communication. This work demonstrates a flexible and low-cost patch antenna developed with a novel material MXene (Ti3C2Tx) coated cellulose paper on polyimide. The MXene based antenna is designed for a single narrowband frequency resonating at 5.8 GHz, which is having a fractional bandwidth of 1.72 % along with the gain of −6.14 dBi. To illustrate the real-time sensing performance of the MXene based antenna, the prototype is tested for pressure and level sensing under various temperature and stability conditions. The measured sensitivity for the pressure sensing is approximately 247 MHz/kPa. Successful demonstration of low-cost, scalable MXene based antenna sensor opens up new avenues of research in 2D materials-based antenna for potential applications in healthcare, security, etc.
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