Research Article Design and Fabrication of Flexible Nanoantenna-Based Sensor Using Graphene-Coated Carbon Cloth Senthil Kumar Kandasamy , 1 S. Maheswaran , 1 S. Anbu Karuppusamy , 2 J. Indra , 3 R. Anand , 4 P. Rega, 5 A. Kavitha , 6 K. Immanuvel Arokia James , 7 Kasthuri Nehru , 1 and K. Kathiresan 8 1 Department of Electronics and Communication Engineering, Kongu Engineering College, Perundurai 638060, Tamilnadu, India 2 Department of Electronics and Communication Engineering, Excel Engineering College, Namakkal 637303, Tamilnadu, India 3 Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore 641407, Tamilnadu, India 4 Department of Electronics and Communication Engineering, Sri Eshwar College of Engineering, Coimbatore 641202, Tamilnadu, India 5 Department of Electronics and Communication Engineering, Angel College of Engineering and Technology, Tirupur 641665, Tamilnadu, India 6 Department of Electronics and Communication Engineering, M.Kumarasamy College of Engineering, Karur 639113, Tamilnadu, India 7 Department of Information Technology, Vel Tech Multi Tech Dr.Rangarajan Dr.Sakunthala Engineering College, Chennai 600062, Tamilnadu, India 8 School of Civil Engineering and Architecture, Adama Science and Technology University, Adama, Ethiopia Correspondence should be addressed to S. Maheswaran; mmaheswaraneie@gmail.com and K. Kathiresan; kathiresan.karuppanan@astu.edu.et Received 20 July 2022; Accepted 11 August 2022; Published 7 September 2022 Academic Editor: Samson Jerold Samuel Chelladurai Copyright © 2022 Senthil Kumar Kandasamy et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Carbon nanomaterials have attracted significant consideration and concern due to the unique chemical and physical properties. Recently, nanodiamonds, graphene, and carbon nanotubes are served as electrodes, hydrogen storage elements, and composite materials. In this work, a 5 GHz graphene nanoantenna that falls inside the very-small-aperture terminal (VSAT) C-band range has been fabricated. A graphene substrate with a thickness of h = 0.5 cm is formed which is then used for fabricating a graphene nanoantenna working at 5 GHz. To design and simulate the antenna, Analysis System (ANSYS) electromagnetic desktop software was used. Using the designed graphene antenna, the parameters such as voltage standing wave ratio, three-dimensional radiation pattern, and directivity were obtained. After designing of the antenna using ANSYS software, it was physically fabricated. e graphene was used as a dielectric, copper sheet acted as a patch over as well as ground. Finally, the design was testedusing Vector Network Analyzer (Model: N9925A) and the transmission range was found as 5 GHz. 1. Introduction Nanotechnology refers to scientific and technical domains in which nanoscale phenomena are utilized in the production, characterization, design, and application of nanomaterials, nanodevices, and systems. Nanotechnology has emerged as one of the most important and exciting frontier subjects in physics, chemistry, engineering, and biology in recent years. It has the potential to provide substantial breakthroughs in the near future, impacting the direction of technological growth in a variety of applications. Nanotechnology, in all of its forms, has the potential to make a tremendous impact on society. Nanotechnology goods are expected to have an environmental effect due to the dispersion and permanence Hindawi Advances in Materials Science and Engineering Volume 2022, Article ID 2265904, 7 pages https://doi.org/10.1155/2022/2265904