Development of NFC and RFID: Use of Inductive Antennas in Modern Near-Field Devices

Abstract

The paper discusses modern Near-Field Communication (NFC) and Radio-Frequency Identification (RFID) technologies, which are widely used in logistics, payment systems, and access control. The study presents an analysis of the development of NFC protocol standards and key parameters that critically affect the performance of NFC devices. The main focus is on analyzing and improving methods for calculating the inductance of antennas used in these technologies. Various types of antennas are described, including circular, square, hexagonal, and octagonal coils, along with proposed formulas for calculating their inductance. The potential of adaptive antennas and complex antenna designs to improve energy transmission efficiency is explored. Additionally, the research focuses on the impact of antenna geometry and materials on the performance of NFC and RFID systems. Special attention is paid to the future prospects of these technologies in the context of the growing number of smart devices and their integration into modern telecommunications systems. The results obtained can be used to develop more reliable and efficient solutions in the field of contactless technologies, as well as for improving energy supply and data transmission systems.