Design and Evaluation of mmWave Backscatter Tag System for Internet of Things Applications

Abstract

The demand for Internet of Things (IoT) devices that provide wireless communication has increased significantly in recent years. RFID technology is currently one of the most widely used and prevalent technologies. Low power consumption and simple hardware design are the main benefits of RFID technology. However, RFID implementation in expansive spaces with massive obstructions would make it difficult for the RFID reader to detect the RFID tag due to interference from these obstructions. This paper describes the practical design of the mmWave FSK backscatter tag system and its evaluation. The experiment results indicate that the FSK backscatter tag system generates the FSK signal from the incoming signal and that the tag can be programmed with any frequency modulation and multiple frequencies. Based on these findings, the mmWave FSK backscatter tag's performance is more promising than the conventional RFID tag. In the following section, we will discuss how the mmWave backscatter tag system is more powerful than conventional RFID tag systems.