Comparative Analysis of Graphene Deposition Technologies for Antennas of Millimeter and Submillimeter Parts of the Spectrum (5-6G)

Currently, there is an active development of new frequency ranges (millimeter and submillimeter parts of the spectrum) due to the introduction of the 5G standard and the study of 6G networks. This leads to the fact that there is a need to develop flexible antennas for these frequency ranges. It is advisable to use graphene for these purposes, since it is possible to manufacture environmentally friendly flexible antennas on its basis. In this work, the authors aim to determine the minimum and maximum frequencies for which flexible graphene antennas can be fabricated using various graphene deposition technologies.The paper presents a comparative analysis of the possibility of using various technologies for deposition of graphene for the manufacture of antennas in the millimeter and submillimeter frequency ranges. To perform this analysis, a critical size parameter was introduced. On its basis, the minimum and maximum frequencies for which flexible graphene antennas can be fabricated are determined using the considered graphene deposition technologies.The design and characteristics of a graphene eco-friendly dipole antenna on a paper substrate, which is made using screen printing technology, are presented. An assessment of the applicability of the technology used for the manufacture of elements of the Internet of things operating in the 5G millimeter frequency range has been carried out.